KERRI WILLIAMSON PA-C
NPI 1508332149
Physician Assistant in San Francisco, CA
About Kerri Williamson Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KERRI WILLIAMSON PA-C (NPI 1508332149) is an individual physician assistant in San Francisco, California, licensed in California (PA58151) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Dover, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Kerri Williamson Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94105
SAN FRANCISCO, CA 94105
SAN FRANCISCO, CA 94105
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Kerri Williamson's NPI number?
The NPI number for Kerri Williamson is 1508332149. It was assigned to this individual provider in the NPPES registry on October 22, 2018.
Where is Kerri Williamson located?
Kerri Williamson practices at 333 1st St Ste A, San Francisco, CA 94105. The listed phone number is (302) 386-7767.
What is Kerri Williamson's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Kerri Williamson enrolled in Medicare?
Yes. Kerri Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Kerri Williamson was last updated on May 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Kerri Williamson, PA-C · NPI 1508332149
Physician Assistant physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since October 22, 2018.
## Identity
- **NPI:** 1508332149 (Entity type: Individual)
- **Enumerated:** October 22, 2018
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** PA58151 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 1ST ST STE A, San Francisco, CA 94105-2661
- **Phone:** (302) 386-7767
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** May 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1508332149) · Data from the CMS NPPES public registry.