Diana Adams, M.D.
NPI 1255300653 · Maternal & Fetal Medicine Physician · Greenwich, CT
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Adams, M.D. is a Maternal & Fetal Medicine Physician provider in Greenwich, CT (NPI 1255300653).
Provider details
- NPI number
- 1255300653
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 052077 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
- 2006-03-16
- Last updated
- 2019-12-18
- Certified
- 2019-12-18
Frequently asked questions
- What is Diana Adams's NPI number?
- Diana Adams's National Provider Identifier (NPI) is 1255300653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Adams's specialty?
- Diana Adams is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Adams located?
- Diana Adams's practice location on file with NPPES is 5 Perryridge Rd, Greenwich, CT 06830-4608.
- What is Diana Adams's phone number?
- The practice phone number listed in the NPPES registry for Diana Adams is (203) 863-3674.
- Does Diana Adams accept Medicare?
- Diana Adams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Adams's NPI active?
- Yes — Diana Adams's NPI (1255300653) is active in the NPPES registry as of the last update on 2019-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.