ERIN REBECCA WALSH MD
NPI 1851978522
Family Medicine in San Francisco, CA
About Erin Rebecca Walsh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIN REBECCA WALSH MD (NPI 1851978522) is an individual family medicine provider in San Francisco, California, licensed in California (A200437) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Spring Valley, and is a graduate of University Of Nevada, Las Vegas School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Erin Rebecca Walsh Md 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 Reassignments
3Medicare enrollment records show Erin Walsh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Diego, CA 92109
- Reassigned Medicare billing, California enrollment
- 1,100 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 94132 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Erin Walsh's NPI number?
The NPI number for Erin Walsh is 1851978522. It was assigned to this individual provider in the NPPES registry on March 26, 2021.
Where is Erin Walsh located?
Erin Walsh practices at 1560 Sloat Blvd Ste 333, San Francisco, CA 94132. The listed phone number is (415) 353-9339.
What is Erin Walsh's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Erin Walsh enrolled in Medicare?
Yes. Erin Walsh 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 organizations bill Medicare for Erin Walsh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Walsh reassigns Medicare benefits to 3 organizations: Ucsf Medical Group Business Services (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Family Health Centers Of San Diego, Inc (San Diego, CA). Each 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 Erin Walsh'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 Erin Walsh was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Erin Rebecca Walsh, MD · NPI 1851978522
Family Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 26, 2021.
## Identity
- **NPI:** 1851978522 (Entity type: Individual)
- **Enumerated:** March 26, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A200437 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1560 SLOAT BLVD STE 333, San Francisco, CA 94132-1223
- **Phone:** (415) 353-9339
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA); Family Health Centers Of San Diego, Inc (NPI 1386689701, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Nevada, Las Vegas School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** December 3, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1851978522) · Data from the CMS NPPES public registry.