About
Dr. John C. Shershow, M.D.
A psychiatrist whose practice is devoted to adults with ADHD, after a career in academic medicine, hospital leadership and healthcare quality.

A psychiatrist focused on adult ADHD
Dr. John C. Shershow is a psychiatrist who specializes in the evaluation and treatment of adults with attention-deficit/hyperactivity disorder (ADHD), sometimes still called ADD. He is licensed in New York and New Jersey.
He trained at the University of Southern California and Yale University, then taught at Harvard Medical School and led an inpatient service at Massachusetts General Hospital. He later served as Associate Dean at SUNY Downstate, as Medical Director of Kings County Hospital Center, and as a surveyor and Senior Teaching Faculty member for the Joint Commission, the organization that accredits US hospitals.
- Harvard CollegeB.A., magna cum laude
- USCM.D.
- Harvard Medical SchoolFormer Clinical Instructor
- Massachusetts General HospitalFormer director of an inpatient service
- SUNY DownstateFormer Associate Dean and Associate Provost
- Joint CommissionFormer surveyor and Senior Teaching Faculty
- American Psychiatric AssociationDistinguished Life Fellow
- New York and New JerseyLicensed physician in both states
Career record
Experience and training
Academic medicine and leadership
- 1995-96Medical DirectorNorthwest Covenant Medical Center, New Jersey
- 1992-95Associate Dean and Associate Provost; Assistant ProfessorSUNY Downstate Medical Center, Brooklyn
- 1992-95Medical DirectorKings County Hospital Center, Brooklyn
- 1989-2003Surveyor and Senior Teaching FacultyJoint Commission on Accreditation of Healthcare Organizations
- 1977-89Founder and PresidentJohn C. Shershow, M.D. and Associates, a private medical group in Massachusetts
- 1973-77Director of an inpatient serviceMassachusetts General Hospital, Boston
- From 1970Clinical InstructorHarvard Medical School
- 1970-73Medical Corps officerUS Army Research Institute of Environmental Medicine
Education and training
- 1969-70Postgraduate trainingYale University
- 1967-69ResidencyUniversity of Southern California
- 1966-67Rotating internshipLos Angeles County Hospital
- 1966M.D.University of Southern California
- 1962B.A., magna cum laudeHarvard College
Professional recognition
Distinguished Life Fellow of the American Psychiatric Association
Publications
Selected publications
From his earlier career in academic psychiatry. These works are not about ADHD.
- Schizophrenia: Science and PracticeEdited by John C. Shershow. Harvard University Press, 1978.
- Editorial: The sometimes science of suicidologyShershow JC. New England Journal of Medicine, 1976;294(6):332-3.
- Regression in the service of residency educationShershow JC, Savodnik I. Archives of General Psychiatry, 1976;33(10):1266-70.
- Ventilatory response to carbon dioxide inhalation in depressionShershow JC, Kanarek DJ, Kazemi H. Psychosomatic Medicine, 1976;38(4):282-7.
Verify for yourself
Check his credentials
You can look up any physician on the official public records.
- New York license 103476New York State Education Department, Office of the Professions
- New Jersey license 25MA06412100New Jersey State Board of Medical Examiners
- NPI 1194039701National Provider Identifier registry
Not sure how to do this? See verifying a license in New York and in New Jersey.
Approach to care
Understanding first, treatment second
Adult ADHD rarely looks the same in two people, and it often overlaps with anxiety, low mood, sleep problems or stress. Dr. Shershow's approach starts with a careful evaluation to understand what is actually driving your difficulties before any treatment is recommended.
Treatment is individualized. For many adults it includes modern ADHD medication, chosen and adjusted with your medical history and goals in mind, and monitored at regular follow-up visits. Every patient begins with an initial consultation, and most continue with ongoing follow-up.
Dr. Shershow aims to keep care affordable by keeping charges for both the initial evaluation and follow-up appointments as low as possible.
On this site
Medical review of our guides
Articles labeled “medically reviewed” name Dr. Shershow as the reviewer, with the date and his license numbers. Each article lists its sources. Our editorial policy explains how this works.

Book an appointment with Dr. Shershow
Call the office to schedule your first appointment, or leave your number and the office will call you. Hours are by appointment only.