IndividualActive
Diana Williamson, MD
NPI 1437318805 · Internal Medicine Physician · New York, NY
Diana Williamson, MD is a Internal Medicine Physician provider in New York, NY (NPI 1437318805).
Provider details
- NPI number
- 1437318805
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 167726-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
154 W 127th St
New York, NY 10027-3722
Phone: (212) 749-3507
Fax: (212) 666-1679
Street-level locationGet directions
Mailing address
154 W 127th St
New York, NY 10027-3722
Registry dates
- Enumerated
- 2008-06-02
- Last updated
- 2008-06-02
Frequently asked questions
- What is Diana Williamson's NPI number?
- Diana Williamson's National Provider Identifier (NPI) is 1437318805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Williamson's specialty?
- Diana Williamson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Williamson located?
- Diana Williamson's practice location on file with NPPES is 154 W 127th St, New York, NY 10027-3722.
- What is Diana Williamson's phone number?
- The practice phone number listed in the NPPES registry for Diana Williamson is (212) 749-3507.
- Is Diana Williamson's NPI active?
- Yes — Diana Williamson's NPI (1437318805) is active in the NPPES registry as of the last update on 2008-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.