MS. SARAH MARIE WILLIAMS FNP-BC
NPI 1215888318
Nurse Practitioner - Family in Stockton, CA
About Ms. Sarah Marie Williams Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. SARAH MARIE WILLIAMS FNP-BC (NPI 1215888318) is an individual family provider in Stockton, California, licensed in California (2024092996) and active in the NPI registry since February 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Sarah Marie Williams Fnp-bc 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.
Medicare Billing Reassignment
Medicare enrollment records show Sarah Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stockton, CA 95207
- Reassigned Medicare billing, California enrollment
- 146 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95207 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 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STOCKTON, CA 95207
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 Sarah Williams's NPI number?
The NPI number for Sarah Williams is 1215888318. It was assigned to this individual provider in the NPPES registry on February 5, 2026.
Where is Sarah Williams located?
Sarah Williams practices at 4555 Precissi Ln, Stockton, CA 95207. The listed phone number is (209) 477-4103.
What is Sarah Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Sarah Williams enrolled in Medicare?
Yes. Sarah Williams 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.
Which organization bills Medicare for Sarah Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Williams reassigns Medicare benefits to Planned Parenthood Mar Monte, Inc (Stockton, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sarah Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sarah Williams was last updated on February 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Ms. Sarah Marie Williams, FNP-BC · NPI 1215888318
Family physician in Stockton, California. Individual provider, active in the CMS NPPES registry since February 5, 2026.
## Identity
- **NPI:** 1215888318 (Entity type: Individual)
- **Enumerated:** February 5, 2026
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2024092996 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4555 PRECISSI LN, Stockton, CA 95207-5743
- **Phone:** (209) 477-4103
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Planned Parenthood Mar Monte, Inc (NPI 1366496838, Stockton, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** February 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1215888318) · Data from the CMS NPPES public registry.