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

Dr. Marc Dinowitz, MD

Individual provider Ophthalmology Physician · NPI 1578582466

Dr. Marc Dinowitz, MD is an Ophthalmology in Riverhead, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1996, 30 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
30
Trained at
State University of New York at Stony Brook, 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

937 E Main St C/o East End Eye A Division Of Prohealth Care Associate
Riverhead, NY 11901-2564
Phone: (631) 369-0777
Fax: (631) 369-0976
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Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 207586 (NY)

Record details

NPI number1578582466
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2006
Last updated in NPPESDecember 14, 2016
Mailing address937 E Main St, C/O East End Eye A Division Of Prohealth Care Associate, Riverhead, NY 11901-2564

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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