Epidemiologist

While the number of epidemiologists working in the United States is relatively small compared to other fields in healthcare, economists predict the field to add several thousand jobs by 2033. As state and local agencies increase funding to improve public health outcomes and hospitals play a larger role in controlling the spread of infectious disease, epidemiology is a field on the rise. 

Epidemiologists study the distribution of determinants of health issues and events within a population. In other words, they use scientific, data-driven studies to understand the patterns of health issues and risks within a group of people, such as children or residents in a specific neighborhood. Some of the public health issues they may investigate include non-infectious diseases, such as birth defects, or environmental exposures, like lead poisoning or air pollutants that cause asthma. The job of an epidemiologist is to search for the cause of an issue, identify who is at risk, and then work to prevent the issue from happening again. 

Most epidemiologists work in an applied or research setting. Applied epidemiologists typically work directly with the public on education and outreach through agencies like a state health department or local public health district. They usually hold a master’s of science (MS) in epidemiology or a master’s of public health (MPH) degree from an accredited college or university. Those interested in leading a public health district or program commonly hold a doctor of public health (DPH).

Research epidemiologists usually work with a federal agency, university, or private healthcare or pharmaceutical company. Those working in research typically hold a terminal degree in a related field, such as a doctorate of philosophy (PhD) in epidemiology. Some applied and research epidemiologists also hold a medical degree (MD).

Unlike many other healthcare professionals, epidemiologists are not required to get a license to practice. However, additional certificates are offered by colleges and universities for those looking to specialize in key areas. There is also a professional certification through the Certification Board of Infection Control and Epidemiology (CBIC) for epidemiologists interested in staying up-to-date on key trends and issues. 

Depending on career goals, there are several degrees available to those looking into a career in epidemiology. 

Master’s Degree Types

Those working as epidemiologists typically have a master’s degree in public health (MPH) or master’s of science in epidemiology (MS). Coursework in these programs typically includes biology, physical science, public health, statistical modeling and analysis, medical informatics, and qualitative data-gathering and analysis. Many programs also require the completion of a practicum or internship. These degrees both take an average of two years to complete. 

While there are a lot of commonalities between these programs, MPH programs typically explore public health concepts and theories while MS programs focus on scientific and mathematical components. Accordingly, students who need to build their quantitative skills or are interested in working in academic or research settings may want to check out an MS program. 

While epidemiology programs are already relatively specialized, potential concentrations include cancer, maternal and child health, occupational and environmental, or global epidemiology.  

Doctoral Degree Types

Alternatively, those looking to direct research, manage a public health program, or teach at the university or college level commonly have a terminal degree. Many working at this level have a doctor of philosophy (PhD) in epidemiology or doctor of public health (DPH) degree. Some epidemiologists may hold a medical degree (MD). 

A PhD in epidemiology may help students looking to direct research or teach at the postsecondary level with the following:

• Grow to understand advanced research methods
• Gain teaching experience
• Write articles for publication in scientific journals 

Less commonly, those with an MPH degree looking to pursue management in public health may want to obtain a doctor of public health (DPH). Depending on the program, some schools will allow students to specialize in epidemiology.

Admissions requirements for many MPH programs are submitted through the Association of Schools and Programs of Public Health (SOPHAS), which provides a common application for schools of public health accredited by the Council on Education for Public Health (CEPH). On the other hand, admissions requirements for an MS in epidemiology are determined by individual schools. Some schools also use SOPHAS for MS in epidemiology degrees, whereas others have a separate process. 

Students applying to any epidemiology master’s program should have completed a bachelor’s degree. Common undergraduate programs completed by applicants include biology, public health, social sciences, and clinical degrees. Last, students should have taken the Graduate Record Examination (GRE) within the previous five years. 

Schools typically require a statement of purpose that includes area(s) of interest, several letters of recommendation, a competitive GRE score, a college transcript, and a resume or curriculum vitae (CV) with relevant work and research experience.

For those pursuing a career in research epidemiology, it is important to examine the school’s faculty and ensure they have similar research interests. This is particularly critical for those applying to MS programs, as many of these programs will not accept applicants with divergent research paths.  

Those applying to DPH or PhD programs must meet the above requirements with the caveat that most applicants to these programs already have a master’s degree and experience in a related field or research. 

Accreditation examines whether a program has the curriculum, instruction, and practices to prepare students for success in a given field. It is not intended to rank programs against one another. Rathe,r it is the process of using peer review to evaluate the educational quality of an institution or program of study at a specific institution. It is common for an institution to hold multiple accreditations. A professional organization may accredit some programs, whereas the school may have regional or national accreditation. 

The Council on Education for Public Health (CEPH) accredits MPH and MS in epidemiology programs. CEPH is recognized by the United States Department of Education as an accrediting body. Graduation from a CEPH-accredited program is not required to work as an epidemiologist. However, programs with CEPH accreditation have demonstrated that they meet professional standards and adequately prepare students to enter the field. 

University of Washington – School of Public Health

The MS in epidemiology offered by the School of Public Health at the University of Washington is among the top-ranked programs in the country. Notably, this program offers a general epidemiology track for students looking to pursue a career in research or a clinical and translational research track for those looking to conduct research with patients in clinical settings. 

Students receive in-depth training in research methods and engage with partner departments and public health agencies. Students’ coursework includes medical biometry, epidemiological methods and data analysis, and biostatistics. The 60-credit program culminates in a master’s thesis so students can grow their skills in developing, undertaking, and presenting a research project. 

Admission requirements include an undergraduate transcript, curriculum vitae (CV) or resume, statement of purpose summarizing career and research interests, personal history statement, and three letters of recommendation.

• Location(s): Seattle, Washington
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

University of Colorado, Denver – Colorado School of Public Health 

The Colorado School of Public Health offers an affordable MS in epidemiology for students looking to develop strong analytical and research skills. This rigorous 38-credit program includes coursework in biostatistical methods, database design and management, clinical epidemiology, public health surveillance, genetics in public health, ethics in research, and more. 

Applicants to this program must have completed undergraduate coursework with a “B” or better in differential calculus and integrated calculus and prior coursework in upper-division biological sciences. In addition, prospective students must hold an undergraduate degree in a scientific field and a minimum 3.0 undergraduate GPA. Applicants also require an official transcript, GRE scores, resume or curriculum vitae (CV), personal statement, and four letters of recommendation.

• Location(s): Aurora, Colorado
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

Baylor University – Robbins College of Health and Human Sciences

Aspiring epidemiologists can complete a two-year on-campus master’s of public health at Baylor University Robbins College of Health and Human Sciences. This program is targeted at students interested in the spread of disease and how health is distributed amongst groups of people. In addition to core courses in public health, students in the epidemiology concentration will complete classes in scientific methodology, population statistics, applied data analysis, and health-related data management. 

Since this program starts in the fall semester, the admission process to this program starts in the winter. Applicants are required to apply through SOPHAS and submit GRE scores. Previous work or training will not be accepted as a substitute for the exam. Graduate assistantships are available for students who wish to apply for them. These assistantships require students to work in the program and are paid a stipend. They may also receive a separate scholarship for tuition and housing expenses. 

• Location(s): Waco, TX
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

Columbia University – Mailman School of Public Health

Master’s of public health students at Columbia University Mailman School of Public Health must complete a certificate program in addition to their degree. The advanced epidemiology certificate is an excellent option for students looking to set themselves apart in this field. Students in this program study infectious and chronic diseases, diverse populations, social and behavioral science, and ethics. At the end of the program, students will have the skills and knowledge to think critically about complex public health challenges. 

This is a very competitive program, and students are required to not only have completed a semester of calculus before applying but also to score in the top 75th percentile for the GRE. The exception to this requirement is receiving at least an A- in the REMA-Quantitative module course that is part of the MPH core curriculum. For students interested in different fields of epidemiology, Columbia also offers a certificate in infectious disease epidemiology or molecular epidemiology.    

• Location(s): New York, NY
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

Johns Hopkins University – Bloomberg School of Public Health

The Department of Epidemiology at Johns Hopkins Bloomberg School of Public Health offers eight options for completing a degree in this field. These include a master’s of health science, master’s of science, PhD, combined master’s and bachelor’s, and certificates. Students who do not have previous experience in epidemiology should consider the master’s of health science (MHS) as it is specifically designed for those with little to no research experience. 

For the MHS students must complete at least 64 credits of classes in core coursework and electives. There are several research tracks students in this degree can pursue, including cancer, genetics, aging, and infectious disease. 

All students who are enrolled in the MHS program at Johns Hopkins will receive one-on-one mentorships to help them not only with their research goals but also in career counseling. The culmination of this program includes a comprehensive exam, a publishable-quality manuscript, and faculty presentation of the research completed. Admissions are competitive; however, GRE scores are not required and students are reviewed holistically to determine their suitability for this program.    

• Location(s): Baltimore, MD
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

Due to their heavy research emphasis, there are no CEPH-accredited online or hybrid MS in epidemiology programs, However, there are a lot of accredited hybrid MPH programs that provide a concentration in epidemiology. These programs may work best for a prospective applied epidemiologist or future manager at a public health agency. Check out some of the hybrid MPH programs below.

University of Michigan – School of Public Health

The School of Public Health at the University of Michigan offers a hybrid MPH for those looking to take the next step in their career as an epidemiologist. All coursework is offered entirely online except for an applied capstone course, and the 42-credit program can be completed in as little as five semesters.

Coursework includes topics such as principles of epidemiology for public health, communication fundamentals, public health sciences, and the environment and population health. Notably, students can pursue a variety of concentrations, as almost half of the required credits are dedicated to electives. Potential concentrations include biostatistics, epidemiology, health behavior, education, or even nutrition. Students can also gain applied experience through the required capstone course, which can take place at any time over their second year.  

Admission to this program requires a competitive GRE or MCAT score, undergraduate transcript, academic statement of purpose, personal statement, letters of recommendation, and resume or curriculum vitae (CE). Note that students who hold a doctorate or who have substantial work experience in public health may be exempt from submitting GRE or MCAT scores. 

• Location(s): Ann Arbor, Michigan
• Duration: Two years
• Accreditation: Council on Education for Public Health (CEPH)

University of Southern California – Keck School of Medicine

The University of Southern California Keck School of Medicine provides a fully online MPH program for students looking to maximize flexibility and career readiness. This 36-credit program offers six concentrations including biostatistics and epidemiology, health services and policy, or even community health promotion.

Coursework in the biostatistics and epidemiology concentration covers topics such as data analysis using SAS and STATA, epidemiology of infectious disease, chronic disease epidemiology, program evaluation and research, and environmental health.  

Admission is competitive and requires a minimum 3.0 undergraduate GPA, three letters of recommendation, a resume or curriculum vitae (CV), GRE scores from within the last five years, and a statement of purpose. Applicants may substitute LSAT, MCAT, DAT, or GMAT scores for the GRE requirement. Applicants with a medical or postgraduate degree in another health-related field may request an exemption from the GRE requirement.

• Location(s): Los Angeles, California
• Duration: One year (full-time) or two years (part-time)
• Accreditation: Council on Education for Public Health (CEPH)

Harvard University – Harvard T.H. Chan School of Public Health

Since 2015, Harvard University’s Harvard T.H. Chan School of Public Health has offered a hybrid master’s of public health in epidemiology. This part-time, primarily distance learning program prepares students to work in advanced roles in epidemiology in hospitals, public health clinics, non-government organizations, and the private sector. This program has two required on-campus intensive sessions to provide students with networking opportunities and hands-on research. In addition, students must complete a one-year-long intensive research practicum guided by Harvard faculty. 

To be considered for admission to this program, applicants must either have a PhD in a health-related field, a master’s and three years of work experience, or a bachelor’s and five years of work experience. Overall, to earn this degree, students must complete 45 credits and finish their applied learning experience. 

• Location(s): Boston, MA
• Duration: Two years, part-time
• Accreditation: Council on Education for Public Health (CEPH)

Drexel University – Dornsife School of Public Health

The master’s of public health in epidemiology at Drexel University Dornsife School of Public Health is offered 100 percent online with no residency component. This uniquely flexible program allows students to complete their education independently. While this degree can be completed in as little as 12 months of full-time study, there is no obligation to take an intensive course load, and students can opt to earn their degree in up to three years. Students who complete their degree less intensively can still earn their degree while working full-time. 

While not required, students are highly encouraged to complete an internship over the summer to gain hands-on experience. Students must earn at least 56 quarter credits to complete this degree. Required classes include biostatistics, statistical computing, and public health foundations and systems. Classes are offered in four ten-week quarters, allowing students to take more classes over a shorter period than a semester program.

• Location(s): Philadelphia, PA
• Duration: As little as 12 months
• Accreditation: Council on Education for Public Health (CEPH)

University of North Carolina – Gillings School of Public Health

The online master’s of public health at the University of North Carolina Gillings School of Public Health offers an applied epidemiology concentration. The flexible online format allows students to earn their degree in as little as 16 months or as much as two years. 

Students in this program will learn how to apply epidemiological approaches to be able to describe the spread of disease or help mitigate public health concerns. Credits for this program are divided into core MPH classes, electives, epidemiology-specific classes, practicum hours, and work experience. 

To be eligible for admission to this program students must have already earned a bachelor’s degree from an accredited institution. Candidates must submit a current resume, official transcripts, a statement of purpose, and letters of recommendation. GRE test scores are not required nor typically considered. International students must provide proof of English proficiency with either a TOEFL or IELTS score.  

• Location(s): Chapel Hill, NC
• Duration: As little as 16 months
• Accreditation: Council on Education for Public Health (CEPH)

Those working to become an epidemiologist who already have a bachelor’s degree typically take an average of one to two years to complete a master’s degree in public health or epidemiology. No licensure exam is required for epidemiologists, so graduates may enter the field immediately after completing their master’s. 

Those without a bachelor’s degree may take anywhere from five to six years to complete an undergraduate program, apply to a master’s degree program, and complete their master’s program.

On the other hand, those pursuing a DPH should anticipate four years of additional schooling after they obtain their bachelor’s degree. Looking into a PhD program in epidemiology? Prepare for at least five to six years to complete this research doctorate, including working on a dissertation and defense.

Those interested in becoming epidemiologists typically complete a master’s degree in public health or epidemiology. While certification is not required, future epidemiologists may want to consider a credential to enhance their skills in certain areas or stand out in the job market. For those looking to conduct research, teach, or manage a public health program, a PhD or DPH is commonly required. 

Looking to take the next step into a career as an epidemiologist? Take a look at the guide below.

Step 1: Obtain a High School Diploma or GED and Apply to an Accredited College or University (Four Years)

The first step in any epidemiology career is obtaining your high school diploma or GED and applying to an undergraduate program at an accredited college or university. While admissions vary by school, most require competitive SAT or ACT scores, a high school transcript that meets minimum GPA requirements, a personal statement, several letters of recommendation, and a resume that includes work and volunteer experience. 

Step 2: Complete a Bachelor’s Degree at an Accredited College or University (Four Years)

Common majors for those interested in epidemiology include biology, human physiology, social sciences, and even public policy. Most epidemiologists hold a master’s degree, but there are certain job functions that a person with a bachelor’s degree can do. These include working as a research or medical administrative assistant, social scientist, or biostatistician. 

While MPH or MS programs do not always require the completion of specific coursework in undergraduate, future epidemiologists may benefit from completing coursework in biology, statistics, qualitative data analysis, and physical science. 

Step 3: Apply to Accredited Master’s Degree Programs 

Epidemiologists typically hold either an MPH or an MS in epidemiology. Students looking to expand their quantitative skills or work as researchers may want to apply for an MS in epidemiology programs. Those interested in public health theory and policy may want to focus on applying to MPH programs. Note that MS programs commonly look for prospective students whose area(s) of research interest align with their own. 

Schools typically require a statement of purpose that includes area(s) of interest, several letters of recommendation, a competitive GRE score, a college transcript, and a resume or curriculum vitae (CV) with relevant work and research experience. CEPH-accredited programs will use the SOPHAS application portal, allowing students to apply to multiple schools with a common application.

Step 4: Complete an Accredited Master’s Degree Program (One to Two Years)

MPH and MS in epidemiology programs typically take one to two years. Coursework commonly includes biology, survey design and evaluation, quantitative modeling, and a practicum or internship. Some schools also offer concentrations in topics like global health, infectious disease, cancer, or aging. 

Step 5: Apply and Complete a Terminal Degree Program (Four to Six Years, Optional)

Students looking into a career in postsecondary education as a teacher or research director will likely need to obtain a DPH or PhD in epidemiology. Likewise, those interested in leadership positions at a public health agency may also need to obtain a DPH.

A DPH typically takes four years to complete, while a PhD may take five to six years. Both require the completion of a dissertation and defense. 

Prospective candidates should look into the areas where faculty are conducting research. Applicants must demonstrate their research interests align with the program and faculty. 

Admissions requirements to these programs include a statement of purpose that includes area(s) of interest, several letters of recommendation, a competitive GRE score, a college transcript, and a resume or curriculum vitae (CV) with relevant work and research experience. While some programs will accept applicants who only hold a bachelor’s degree, most require applicants to hold a master’s in public health or epidemiology. 

Step 6: Begin a Career in Epidemiology

While epidemiologists are not required to get licensed or certified, there are a number of professional credentials available for those looking to stay up-to-date on their skills. These include yearlong certificate programs colleges and universities offer in specialty areas like biostatistics, clinical epidemiology, and epidemiology for public health professionals. 

The Certification Board of Infection Control and Epidemiology (CBIC) also offers professional certification. This voluntary certification is available to working epidemiologists who hold a degree from an accredited institution and have at least two years of experience in infection prevention and control. Applicants must pass an exam and complete some continuing education coursework each year.

Epidemiologists are public health professionals who collect and analyze data to investigate the patterns and causes of health issues. Through research, public education, and policy, epidemiologists work to reduce the risk and negative outcomes for the public’s health. 

The day-to-day functions of an epidemiologist typically include:

• Developing and conducting studies to understand public health issues, risks, and potential prevention and treatment strategies
• Collecting and analyzing interviews, surveys, and observation data to understand public health issues, trends, or the cause of a problem
• Collecting and analyzing samples, such as blood and urine, to understand public health issues, trends, or the cause of a problem
• Developing public education and outreach plans to communicate findings to policymakers, the public, and the medical profession
• Planning, managing, and evaluating public health programs

Epidemiologists work in either applied public health or research. Applied epidemiologists typically work for a public agency, such as a state health department or local health district, to conduct education and outreach efforts directly to communities. Research epidemiologists usually work for national organizations, such as the Centers for Disease Control and Prevention (CDC), or universities. Some epidemiologists conduct research in the private sector for pharmaceutical or health insurance companies and those who work in nonprofits that advocate for better public health outcomes. 

Licensure is not required for epidemiologists, although optional certifications and membership-based professional organizations are available. While voluntary, the Certification Board of Infection Control and Epidemiology (CBIC) offers professional certification. Those interested in this certification must have a degree from an accredited institution, at least two years of experience in infection prevention and control, and pass an exam. 

Not to be confused with certification, there are also many certificate programs available. These programs are typically one year long and designed for those with a bachelor’s degree who do not need a master’s degree or those with a master’s degree who wish to gain additional specialization within the field. Specialized certificates for epidemiologists include healthcare epidemiology, infectious disease epidemiology, infection prevention and control, and more. 

Admission requirements for certificate programs vary. Some schools may require students to already be enrolled in a program, while others are designed for working professionals. Most schools require students to have a bachelor’s degree from an accredited institution, although some may have different requirements such as a bachelor’s degree in a related field or a minimum GRE score. Always check with the school’s admissions office before applying. 

There are 8,180 epidemiologists currently employed in the United States. The Bureau of  Labor Statistics (2024) predicts the addition of 2,100 jobs between 2023 and 2033, an increase of 19 percent. This significant increase is due in large part to the Covid-19 pandemic. Many agencies are also adding services such as mental health and substance abuse. As the majority of growth in this field is located in the public sector, demand will likely be controlled by state and local budgets.

The Bureau of Labor Statistics (BLS May 2023) found that epidemiologists had an average annual salary of $90,430. Here are the detailed salary percentiles:

• 10th percentile: $54,950
• 25th percentile: $65,910
• 50th percentile (median): $81,390
• 75th percentile: $103,980
• 90th percentile: $132,230

Here are some alternatives to a career as an epidemiologist: 

Become a Genetic Counselor

Genetic counselors work with patients who are pursuing in-depth genetic testing. They provide advice, advocacy, education, and expertise for what can be complicated and difficult genetic test results. Professionals in this career have a strong understanding of medicine and science and the ability to provide emotional support. 

• Typical Education: Master’s degree
• Licensing or Certifying Organization: American Board of Genetic Counseling (ABCG)

Become a Population Health Manager

Population health managers work in healthcare centers, hospitals, community clinics, and public health agencies to help improve the health of a specific population. They do this through research, program development, education, and intervention implementation. 

• Typical Education: Bachelor’s degree
• Licensing or Certifying Organization: National Commission for Health Education Credentialing (NCHEC) and National Board of Public Health Examiners

Become a Nutritionist or Registered Dietician

Registered dieticians and nutritionists work with clients to identify nutritional deficiencies or risk factors. They then develop a plan to mitigate the risks or address the deficiencies and then support their patients through their journey to improve their health. They may also provide group classes or educational programs. 

• Typical Education: Master’s degree
• Licensing or Certifying Organization: Commission on Dietetic Registration and Board for Certification of Nutrition Specialists

Bree Nicolello

Writer

Bree is an urban planner and freelance writer based in Seattle, WA. She has worked on land use and housing policy issues throughout the Pacific Northwest. She previously led Run Oregon Run, a nonprofit dedicated to helping Oregonians run for office and apply to boards and commissions. When not writing, she is lovingly tending to her cast iron pans.

Kimmy Gustafson

Writer

At HealthcareDegree.com, Kimmy Gustafson has delivered in-depth and insightful articles since 2019, aiding prospective students to navigate the complexities of choosing the right healthcare degree. Her recent work includes topics such as the ethics of gene editing and physician assistant’s fight for autonomy.

Kimmy has been a freelance writer for more than a decade, writing hundreds of articles on a wide variety of topics such as startups, nonprofits, healthcare, kiteboarding, the outdoors, and higher education. She is passionate about seeing the world and has traveled to over 27 countries. She holds a bachelor’s degree in journalism from the University of Oregon. When not working, she can be found outdoors, parenting, kiteboarding, or cooking.