Barry Witt, MD
NPI 1538109699 · Reproductive Endocrinology Physician · Greenwich, CT
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barry Witt, MD is a Reproductive Endocrinology Physician provider in Greenwich, CT (NPI 1538109699).
Provider details
- NPI number
- 1538109699
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 168909 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2020-07-08
- Certified
- 2020-07-08
Frequently asked questions
- What is Barry Witt's NPI number?
- Barry Witt's National Provider Identifier (NPI) is 1538109699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barry Witt's specialty?
- Barry Witt is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Barry Witt located?
- Barry Witt's practice location on file with NPPES is 55 Holly Hill Ln Ste 270, Greenwich, CT 06830-6074.
- What is Barry Witt's phone number?
- The practice phone number listed in the NPPES registry for Barry Witt is (032) 863-2990.
- Does Barry Witt accept Medicare?
- Barry Witt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barry Witt's NPI active?
- Yes — Barry Witt's NPI (1538109699) is active in the NPPES registry as of the last update on 2020-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.