Greenwich Medical Services PC
NPI 1790085983 · Internal Medicine Physician · Stamford, CT
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greenwich Medical Services PC is a Internal Medicine Physician organization in Stamford, CT (NPI 1790085983).
Provider details
- NPI number
- 1790085983
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anna Shender, President(203) 961-8241
- License
- 000498 (CT)
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
15 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
Other names (DBA / former)
- Doing business as
- Gms
Registry dates
- Enumerated
- 2010-10-22
- Last updated
- 2010-11-19
Frequently asked questions
- What is Greenwich Medical Services PC's NPI number?
- Greenwich Medical Services PC's National Provider Identifier (NPI) is 1790085983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Greenwich Medical Services PC?
- Greenwich Medical Services PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greenwich Medical Services PC located?
- Greenwich Medical Services PC's practice location on file with NPPES is 66 Glenbrook Rd, Stamford, CT 06902-8402.
- What is Greenwich Medical Services PC's phone number?
- The practice phone number listed in the NPPES registry for Greenwich Medical Services PC is (203) 961-8241.
- Does Greenwich Medical Services PC accept Medicare?
- Greenwich Medical Services PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Greenwich Medical Services PC?
- The authorized official listed on Greenwich Medical Services PC's NPPES record is Anna Shender, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Greenwich Medical Services PC's NPI active?
- Yes — Greenwich Medical Services PC's NPI (1790085983) is active in the NPPES registry as of the last update on 2010-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.