PATRICIA ANNE YEN NP
NPI 1770150492
Nurse Practitioner in San Francisco, CA

Active since June 10, 2021PECOS EnrolledAccepts Medicare Assignment
550 16TH ST FL 5, SAN FRANCISCO, CA 94158(415) 476-5153 Get Directions Write a Review

NPPES record last updated: May 6, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 6, 2025, Apr 18, 2022, Aug 13, 2021 and 1 more (4 updates tracked since 2021).

About Patricia Anne Yen Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PATRICIA ANNE YEN NP (NPI 1770150492) is an individual nurse practitioner in San Francisco, California, licensed in California (95015853) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Palo Alto, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1770150492
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NamePATRICIA ANNE YENCredential: NP
Location Address550 16TH ST FL 5San Francisco, CA 94158-2604
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJune 10, 2021
Last NPPES UpdateMay 6, 20254 updates tracked since enumeration
NPPES CertifiedMay 6, 2025
✔ NPI 1770150492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95015853
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 95015853 (CA)
550 16TH ST FL 5, San Francisco, CA 94158

Other Names 1

Other Name (5)Patricia Anne Kelly

Secondary Practice Location 1

Location 1725 Welch RdPalo Alto, CA 94304-1601 · Phone (650) 497-8000

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

Patricia Anne Yen 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.

PECOS PAC ID4486058468
PECOS Enrollment IDI20210812003325
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Patricia Yen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Surgery
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 761 clinicians in this Medicare group
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 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 94158 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Pediatrics)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Physician Assistant (Surgical)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Nurse Practitioner (Pediatrics)
550 16TH ST FL 5, BOX 0570
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Critical Care Medicine)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Nurse Practitioner (Acute Care)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Critical Care Medicine)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Psychologist (Clinical Child & Adolescent)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Critical Care Medicine)
550 16TH ST FL 5
SAN FRANCISCO, CA 94158

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 Patricia Yen's NPI number?

The NPI number for Patricia Yen is 1770150492. It was assigned to this individual provider in the NPPES registry on June 10, 2021. The provider is also known as Patricia Anne Kelly.

Where is Patricia Yen located?

Patricia Yen practices at 550 16th St Fl 5, San Francisco, CA 94158. The listed phone number is (415) 476-5153.

What is Patricia Yen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Patricia Yen enrolled in Medicare?

Yes. Patricia Yen 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 Patricia Yen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patricia Yen reassigns Medicare benefits to 4 organizations: Ucsf Dept Of Surgery (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Patricia Yen'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 Patricia Yen was last updated on May 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.