Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William J Cohn, MD

Individual provider Gastroenterology Physician · NPI 1861459208

Dr. William J Cohn, MD is a Gastroenterology in East Setauket, New York. Graduated from University College of Medicine in 1972, 54 years ago. Practices with Medical Services of Setauket PC, a 15-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
54
Trained at
University College of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3400 Nesconset Hwy Ste 101
East Setauket, NY 11733-3327
Phone: (631) 751-8700
Fax: (631) 751-5971
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 126917 (NY)

Record details

NPI number1861459208
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2006
Last updated in NPPESSeptember 20, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY COLLEGE OF MEDICINE
Graduated 1972 (54 years in practice)
Group practice Medical Services Of Setauket Pc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in East Setauket