Greenwich Medical Group
NPI 1881781029 · Internal Medicine Physician · Greenwich, CT
Greenwich Medical Group is a Internal Medicine Physician organization in Greenwich, CT (NPI 1881781029).
Provider details
- NPI number
- 1881781029
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gail Fennell, Managing Partner(203) 869-6960
- License
- AS8735308 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-10-09
- Last updated
- 2025-09-11
Frequently asked questions
- What is Greenwich Medical Group's NPI number?
- Greenwich Medical Group's National Provider Identifier (NPI) is 1881781029, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Greenwich Medical Group?
- Greenwich Medical Group is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greenwich Medical Group located?
- Greenwich Medical Group's practice location on file with NPPES is 75 Holly Hill Ln, Greenwich, CT 06830-6098.
- What is Greenwich Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Greenwich Medical Group is (203) 869-6960.
- Who is the authorized official for Greenwich Medical Group?
- The authorized official listed on Greenwich Medical Group's NPPES record is Gail Fennell, Managing Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Greenwich Medical Group's NPI active?
- Yes — Greenwich Medical Group's NPI (1881781029) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.