Mary Diana, MD
NPI 1962445684 · Obstetrics & Gynecology Physician · Westport, CT
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Diana, MD is a Obstetrics & Gynecology Physician provider in Westport, CT (NPI 1962445684).
Provider details
- NPI number
- 1962445684
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 56749 (CT)
Specialties & taxonomies
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
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
- 2006-06-13
- Last updated
- 2020-12-08
- Certified
- 2020-12-07
Frequently asked questions
- What is Mary Diana's NPI number?
- Mary Diana's National Provider Identifier (NPI) is 1962445684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Diana's specialty?
- Mary Diana is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Diana located?
- Mary Diana's practice location on file with NPPES is 12 Avery Place, Westport, CT 06880.
- What is Mary Diana's phone number?
- The practice phone number listed in the NPPES registry for Mary Diana is (203) 227-5125.
- Does Mary Diana accept Medicare?
- Mary Diana is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Diana's NPI active?
- Yes — Mary Diana's NPI (1962445684) is active in the NPPES registry as of the last update on 2020-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.