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

Dr. Hillary Diamond, MD

Individual provider Internal Medicine Physician · NPI 1902967011

Dr. Hillary Diamond, MD is an Internal Medicine in Northport, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1992, 34 years ago. Practices with Advantagecare Physicians PC, a 310-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
34
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2006
Specialties on file
2
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

99 Sea Cove Rd
Northport, NY 11768-1850
Phone: (631) 300-0585
Fax: (308) 888-8554
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 196450 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 196450 (NY)

Record details

NPI number1902967011
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 12, 2006
Last updated in NPPESJune 1, 2020
Certification dateJune 1, 2020
Mailing address99 Sea Cove Rd, Northport, NY 11768-1850

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Advantagecare Physicians Pc — 310 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Northport