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KATHRYN MERCADO YU NP
NPI 1275999765
Nurse Practitioner - Family in San Francisco, CA

Active since January 13, 2016PECOS Enrolled
505 PARNASSUS AVE # L171, SAN FRANCISCO, CA 94143(415) 353-1480 Get Directions Write a Review

NPPES record last updated: April 20, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 20, 2022, Mar 17, 2018, Nov 15, 2017 and 3 more (6 updates tracked since 2016).

About Kathryn Mercado Yu Np NPPES

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

KATHRYN MERCADO YU NP (NPI 1275999765) is an individual family provider in San Francisco, California, licensed in California (95002802) and active in the NPI registry since January 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275999765
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHRYN MERCADO YUCredential: NP
Location Address505 PARNASSUS AVE # L171San Francisco, CA 94143-2204
Mailing Address254 Baltimore WaySan Francisco, CA 94112-4431
Phone(415) 353-1480
Sole ProprietorNo
Enumeration DateJanuary 13, 2016
Last NPPES UpdateApril 20, 20226 updates tracked since enumeration
NPPES CertifiedApril 20, 2022
✔ NPI 1275999765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 95002802
505 PARNASSUS AVE # L171, San Francisco, CA 94143
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathryn Mercado Yu Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

3

Medicare enrollment records show Kathryn Yu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
Same address
Endocrinology, Diabetes & Metabolism
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 2,112 clinicians in this Medicare group
NPI 1376613943 (415) 353-2350
University Of California San Francisco
0.1 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
0.1 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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.

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.

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 Kathryn Yu's NPI number?

The NPI number for Kathryn Yu is 1275999765. It was assigned to this individual provider in the NPPES registry on January 13, 2016.

Where is Kathryn Yu located?

Kathryn Yu practices at 505 Parnassus Ave # L171, San Francisco, CA 94143. The listed phone number is (415) 353-1480.

What is Kathryn Yu's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Kathryn Yu enrolled in Medicare?

Yes. Kathryn Yu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kathryn Yu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Yu reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (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 Kathryn Yu'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 Kathryn Yu was last updated on April 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.