The Doctorate of Medicine and of Philosophy (MD–PhD) is a dual doctoral degree for physician–scientists, combining the professional training of the Doctor of Medicine degree with the research expertise of the Doctor of Philosophy degree; the Ph.D. is the most advanced credential in the United States. Other dual degree programs exist, such as the joint MD–JD degree; both the JD professional degree and the MD are not universally recognized internationally, however. The National Institutes of Health currently provides 50 medical schools with Medical Scientist Training Program grants that support the training of students in MD–PhD programs at these institutions through tuition and stipend allowances. These programs are often competitive, with some admitting as few as two students per academic year.^[1] The MCAT score and GPA of MD–PhD matriculants are often higher than MD only matriculants.^[2][3]

Application and admissions

MD–PhD typically require or prefer candidates who have had a background in research, either under a professor as an undergraduate or have taken at least one gap year to work in a laboratory setting. The application process in addition to a personal statement required for MD-only applications also require two additional essays to describe why an applicant wants to pursue an MD–PhD and an essay describing their research background.

Training programs

In the United States, MD–PhD degrees can be obtained through dual-degree programs offered at some medical schools. The idea for an integrated training program began at Case Western Reserve University School of Medicine in 1956^[4] and quickly spread to other research medical schools. In 1964, through the Chief of the Office of Program Planning and Evaluation Herbert H. Rosenberg, Ph.D., the National Institutes of Health (NIH) developed a grant to underwrite some universities' MD–PhD programs. This funding was distributed through the Medical Scientist Training Program (MSTP). There are also non-MSTP funded dual-degree programs, which typically provide funding through endowment funds, research assistantships, teaching assistantships, and extramural fellowships). Non-MSTP funded dual degree programs have more flexibility and can extend to degrees other than the PhD (e.g., JD and MBA degrees).

Admission to a dual degree program is not a requirement to receive MD and PhD degrees. An individual has the option to complete each degree separately through single-degree programs. However, the student is responsible for all medical school tuition and does not receive a stipend during their MD education. Furthermore, since the PhD training is not streamlined with the medical training, students will often take additional years to complete their PhD.

A PhD may also be obtained by physicians during the residency training period. This combined research and graduate-level medical education are offered by a minority of residency programs. This additional education typically extends the residency period by three to four years.

Training structure

Benefits of the dual degree program

Career paths

The vast majority (over 80%) of MD–PhD graduates eventually choose to enter academia, government, or industry where medical research is a central component of their duties.^[5] According to a FASEB study conducted in 2000, graduates of NIH-funded MSTPs make up just 2.5% of medical school graduates each year, but after graduation, account for about one third of all NIH research grants awarded to physicians. Many MD–PhD graduates also practice clinical medicine in their field of expertise.^[6]

Notable MD–PhD physician–scientists

• Barry Blumberg – Recipient of the 1976 Nobel Prize in Physiology or Medicine along with Daniel Gajdusek for their work on the human prion disease kuru
• Francis Collins – Former Director of the National Institutes of Health and former leader of the Human Genome Project
• James DiCarlo – computational neuroscientist and Head of the MIT Department of Brain and Cognitive Sciences
• Alfred G. Gilman – Recipient of the 1994 Nobel Prize in Physiology or Medicine along with Martin Rodbell for their discoveries regarding G-proteins
• Robert Satcher – Physician, chemical engineer, and NASA astronaut who became the first orthopedic surgeon in space during STS-129
• Vilayanur S. Ramachandran – Neuroscientist known for his work in the fields of behavioral neurology and visual psychophysics
• David Satcher – 16th Surgeon General of the United States
• Chi Van Dang – Director of the Abramson Cancer Center of the University of Pennsylvania
• Christopher Duntsch – Neurosurgeon sentenced to life in prison for intentionally botching 32 surgeries that killed two patients and paralyzed two others^[7]
• Gregg L. Semenza - Pediatrician and Professor of Genetic Medicine and Nobel Prize Winner in Medicine, subsequently retracted numerous papers.^[8]
• Joseph Ladapo - Surgeon General of Florida, known for spreading misinformation.^[9][10]
• Bruce D. Perry - Psychiatrist and researcher in children’s mental health and neuroscience, known for developing the Neurosequential Model.
• Howard Markel - American physician and medical historian^[11]
• Ben Barres - American neurobiologist, first openly transgender scientist in the National Academy of Sciences in 2013.^[12]
• Paul Farmer - Global health physician and medical anthropologist.^[13]
• Leon Kass - Former chairman from 2001 to 2005 on the United States President's Council on Bioethics, opposed embryonic stem-cell research.^[14]
• Fritz Perls - Psychiatrist, psychotherapist, and co-founder of Gestalt Therapy.^[15]
• Henry Murray - Harvard University Psychologist, performed abusive and unethical experiments^[16][17] on subjects including Ted Kaczynski.
• John Augustus Larson - First American police officer with a doctorate degree, Forensic psychiatrist, inventor of the junk science^[18][19] polygraph machine.^[20][21][22]
• Joshua A. Gordon - Director of the National Institute of Mental Health.^[23]
• Karl Deisseroth - D.H. Chen Professor of Bioengineering and of Psychiatry and Behavioral Sciences at Stanford University, and Investigator of the Howard Hughes Medical Institute, member of the advisory committee on the BRAIN Initiative.^[24]
• Emery N. Brown - Professor of Computational Neuroscience and Health Sciences and Technology, at Massachusetts Institute of Technology, and the Warren M. Zapol Professor of Anaesthesia, of Harvard Medical School, at Massachusetts General Hospital, member of the advisory committee on the BRAIN Initiative.^[25]
• Ezekiel Emanuel - American oncologist, bioethicist, and senior fellow at the Center for American Progress. Formerly a member of the COVID-19 Advisory Board.
• Milton Erickson - Psychiatrist and Psychologist, pioneer in Family Therapy and hypnosis.^[26]
• Carl Elliott - Bioethics scholar^[27]

See also

• Doctor of Medicine
• Doctor of Philosophy
• Biomedical scientist
• DPT-MPH
• Association of American Medical Colleges
• American Physician Scientists Association

References