Sharon Marcus-Geller, M.D.
NPI 1609832021 · Internal Medicine Physician · Cambridge, MA
Sharon Marcus-Geller, M.D. is a Internal Medicine Physician provider in Cambridge, MA (NPI 1609832021).
Provider details
- NPI number
- 1609832021
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- 216981 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sharon Marcus-Geller's NPI number?
- Sharon Marcus-Geller's National Provider Identifier (NPI) is 1609832021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Marcus-Geller's specialty?
- Sharon Marcus-Geller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sharon Marcus-Geller located?
- Sharon Marcus-Geller's practice location on file with NPPES is 1611 Cambridge St, Cambridge, MA 02138-4302.
- What is Sharon Marcus-Geller's phone number?
- The practice phone number listed in the NPPES registry for Sharon Marcus-Geller is (617) 661-5100.
- Is Sharon Marcus-Geller's NPI active?
- Yes — Sharon Marcus-Geller's NPI (1609832021) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.