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

Dr. William Wertheim, MD

Individual provider Internal Medicine Physician · NPI 1174548200

Dr. William Wertheim, MD is an Internal Medicine in East Setauket, New York. Graduated from New York University School of Medicine in 1989, 37 years ago. Practices with Stony Brook Internists University Faculty Practice Corporation, a 428-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
37
Trained at
New York University School 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

205 N Belle Mead Rd
East Setauket, NY 11733
Phone: (631) 444-4630
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 196934 (NY)

Record details

NPI number1174548200
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Stony Brook Internists University Faculty Practice Corporation — 428 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in East Setauket