1. Home
  2. Directory
  3. California
  4. San Francisco
  5. Nurse Practitioner
  6. NPI Profile

MS. KAREN XU
NPI 1295167229
Nurse Practitioner - Family in San Francisco, CA

Active since August 01, 2013PECOS Enrolled
3000 CALIFORNIA ST, SAN FRANCISCO, CA 94115(415) 563-2600 Get Directions Write a Review

NPPES record last updated: March 14, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 14, 2025, Feb 28, 2025 (2 updates tracked since 2025).

About Ms. Karen Xu NPPES

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

MS. KAREN XU (NPI 1295167229) is an individual family provider in San Francisco, California, licensed in California (NP95018783) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1295167229
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. KAREN XU
Location Address3000 CALIFORNIA STSan Francisco, CA 94115-2411
Mailing Address83 Cassandra CtSan Francisco, CA 94112-4206 · (415) 810-7293
Phone(415) 563-2600
Sole ProprietorYes
Enumeration DateAugust 1, 2013
Last NPPES UpdateMarch 14, 20252 updates tracked since enumeration
NPPES CertifiedMarch 14, 2025
✔ NPI 1295167229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · NP95018783
Also ListedRegistered NurseTaxonomy 163W00000X · License 844515 (CA)
3000 CALIFORNIA ST, San Francisco, CA 94115
Open in Google Maps ↗

Secondary Practice Location 1

Location 11001 Potrero Ave Rm 3C38San Francisco, CA 94110-3518 · Phone (628) 206-8145 · Fax (628) 206-6014

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Karen Xu 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 Karen Xu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City & County Of San Francisco
0.6 mi
Federally Qualified Health Center (FQHC)
1301 PIERCE STREET
San Francisco, CA 94115
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
NPI 1932140795 (415) 292-1300
North East Medical Services
1.4 mi
Federally Qualified Health Center (FQHC)
650 POLK ST
San Francisco, CA 94102
  • Reassigned Medicare billing, California enrollment
  • 176 clinicians in this Medicare group
NPI 1942844477 (415) 391-9686
University Of California Sfgh Medical Group
3.1 mi
Family Medicine
1001 POTRERO AVE, BLDG 80 WARD 83 RM 320
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 842 clinicians in this Medicare group
NPI 1174598296 (628) 206-8610

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 94115 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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PACIFIC HEIGHTS SURGERY CENTER OF SAN FRANCISCO LP
Clinic/Center (Ambulatory Surgical)
3000 CALIFORNIA ST, 2ND FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 561-1171
DR. EUGENE M. WOLF M. D.
Orthopaedic Surgery
3000 CALIFORNIA ST, 3RD FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 563-2600
EUGENE M. WOLF M.D. INC.
Orthopaedic Surgery
3000 CALIFORNIA ST, 3RD FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 563-2600

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 Karen Xu's NPI number?

The NPI number for Karen Xu is 1295167229. It was assigned to this individual provider in the NPPES registry on August 1, 2013.

Where is Karen Xu located?

Karen Xu practices at 3000 California St, San Francisco, CA 94115. The listed phone number is (415) 563-2600.

What is Karen Xu's specialty?

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

Is Karen Xu enrolled in Medicare?

Yes. Karen Xu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Karen Xu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Xu reassigns Medicare benefits to 3 organizations: City & County Of San Francisco (San Francisco, CA), North East Medical Services (San Francisco, CA) and University Of California Sfgh Medical Group (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 Karen Xu'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 Karen Xu was last updated on March 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.