KATIE ALYSSA YAMANISHI NP
NPI 1992351498
Nurse Practitioner in San Francisco, CA
About Katie Alyssa Yamanishi Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATIE ALYSSA YAMANISHI NP (NPI 1992351498) is an individual nurse practitioner in San Francisco, California, licensed in California (NP95036423) and active in the NPI registry since August 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Greenbrae, and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses 3
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
Katie Alyssa Yamanishi Np 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
6Medicare enrollment records show Katie Yamanishi reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Apple Valley, CA 92308
- Reassigned Medicare billing, California enrollment
- 1,699 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 clinicians in this Medicare group
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
- 1,159 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 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 94143 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 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Katie Yamanishi's NPI number?
The NPI number for Katie Yamanishi is 1992351498. It was assigned to this individual provider in the NPPES registry on August 12, 2019.
Where is Katie Yamanishi located?
Katie Yamanishi practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2161.
What is Katie Yamanishi's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Katie Yamanishi enrolled in Medicare?
Yes. Katie Yamanishi 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 Katie Yamanishi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katie Yamanishi reassigns Medicare benefits to 6 organizations: Providence Medical Foundation (Apple Valley, CA), Regents Of The University Of California (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA) and 1 more organization, listed in the Medicare section above. 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 Katie Yamanishi'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 Katie Yamanishi was last updated on September 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Katie Alyssa Yamanishi, NP · NPI 1992351498
Nurse Practitioner physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 12, 2019.
## Identity
- **NPI:** 1992351498 (Entity type: Individual)
- **Enumerated:** August 12, 2019
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** NP95036423 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (415) 353-2161
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Providence Medical Foundation (NPI 1053616706, Apple Valley, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** September 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1992351498) · Data from the CMS NPPES public registry.