Kerri Williamson, PA-C
NPI 1508332149 · Physician Assistant · San Francisco, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kerri Williamson, PA-C is a Physician Assistant provider in San Francisco, CA (NPI 1508332149).
Provider details
- NPI number
- 1508332149
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- C5-0001258 (DE)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1125 Forrest Ave Ste 203Dover, DE 19904-3483Phone: (302) 346-0100
Registry dates
- Enumerated
- 2018-10-22
- Last updated
- 2025-05-20
- Certified
- 2025-05-20
Frequently asked questions
- What is Kerri Williamson's NPI number?
- Kerri Williamson's National Provider Identifier (NPI) is 1508332149, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kerri Williamson's specialty?
- Kerri Williamson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kerri Williamson located?
- Kerri Williamson's practice location on file with NPPES is 333 1st St Ste a, San Francisco, CA 94105-2661.
- What is Kerri Williamson's phone number?
- The practice phone number listed in the NPPES registry for Kerri Williamson is (302) 386-7767.
- Does Kerri Williamson accept Medicare?
- Kerri Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kerri Williamson's NPI active?
- Yes — Kerri Williamson's NPI (1508332149) is active in the NPPES registry as of the last update on 2025-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.