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SHARON MARCUS-GELLER M.D.
NPI 1609832021
Internal Medicine in Cambridge, MA

Active since April 25, 2006
1611 CAMBRIDGE ST, INTERNAL MEDICINE, CAMBRIDGE, MA 02138(617) 661-5100 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Sharon Marcus-geller M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHARON MARCUS-GELLER M.D. (NPI 1609832021) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (216981) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1609832021
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSHARON MARCUS-GELLERCredential: M.D.
Location Address1611 CAMBRIDGE ST, INTERNAL MEDICINECambridge, MA 02138-4302
Mailing Address147 Milk St, Provider Enrollment - 9th FloorBoston, MA 02109-4806 · (617) 559-8374 · Fax (617) 421-3487
Phone(617) 661-5100
Sole ProprietorNo
Enumeration DateApril 25, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1609832021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 216981
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1611 CAMBRIDGE ST, Cambridge, MA 02138
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Other Names 1

Former Name (1)Sharon Marcus

Other Identifiers 1

Medicaid2020718MA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RICHARD I. CAPLAN LICSW
Social Worker
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5515
IRINA ANGEL MD
Psychiatry & Neurology (Psychiatry)
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5515
AARON BIRNBAUM
Internal Medicine
1611 CAMBRIDGE ST, INTERNAL MEDICINE
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5100
ALAN D BRUSH M.D.
Internal Medicine
1611 CAMBRIDGE ST, INTERNAL MEDICINE
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5450
BRONWYN KATE MASTRANGELO
Physician Assistant
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5500
DR. MARGARET ANN TABOR D.C.
Chiropractor (Nutrition)
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5291
MAURA JEAN DIPIETRO RN
Registered Nurse
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5575
RONG ZHANG LIC. AC.
Acupuncturist
1611 CAMBRIDGE ST
CAMBRIDGE, MA 02138
Middlesex County (617) 661-5457

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sharon Marcus-geller's NPI number?

The NPI number for Sharon Marcus-geller is 1609832021. It was assigned to this individual provider in the NPPES registry on April 25, 2006. The provider is also known as Sharon Marcus.

Where is Sharon Marcus-geller located?

Sharon Marcus-geller practices at 1611 Cambridge St Internal Medicine, Cambridge, MA 02138. The listed phone number is (617) 661-5100.

What is Sharon Marcus-geller's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Sharon Marcus-geller was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.