NPPES file of Aug 9, 2026

Karen Xu

Family Nurse Practitioner · San Francisco, CA

Karen Xu is a family nurse practitioner with a practice address in San Francisco, California, and NPI 1295167229, issued on Aug 1, 2013. Check the license (California NP95018783, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295167229
Name
Karen Xu
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
NP95018783 CA
844515 CA
Self-reported in NPPES; status is on the state search
Practice location
3000 California St, San Francisco, CA 94115
Phone
(415) 563-2600
Enumerated
Aug 1, 2013
Record last updated
Mar 14, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3000 California St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eugene Wolf, M. D.Orthopaedic Surgery Physician1386683621

Verify Karen Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP95018783
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

15 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Karen Xu15
  2. Specialty average1,305

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $43.77

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Xu$43.77
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Karen Xu among 16,966 family nurse practitioner records in California

Karen Xu is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 24% of them.

  • NPI issued2013 · 24% of these records are older, 73% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2025 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

662 family nurse practitioner records list a practice address in San Francisco

They are 662 of the 38,143 NPPES records with a practice address in San Francisco, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Catherine Grace Alejo, NPSan Francisco, CA 941151932273521
  2. Jill Baker, MSN, FNPSan Francisco, CA 941151477628881
  3. Cheri Barzottini, MSN, FNPSan Francisco, CA 941151336219443
  4. Sherry Couto, NPSan Francisco, CA 941151477586451
  5. Marianne Lakamp, FNPSan Francisco, CA 941151679646277
  6. Mideo Luk, NPSan Francisco, CA 941151275630188
  7. Evelyn Martinez, NPSan Francisco, CA 941151760410591
  8. Lisa Mihaly, RN, FNPSan Francisco, CA 941151770508186

Common questions

What is Karen Xu's NPI number?

Karen Xu's National Provider Identifier (NPI) is 1295167229, issued on Aug 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Karen Xu located?

The NPPES record lists a practice address at 3000 California St, San Francisco, CA, 94115. Phone: (415) 563-2600. Providers update this record themselves, so call before visiting.

How can I verify Karen Xu's license?

NPPES lists California license number NP95018783, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Karen Xu prescribe under Medicare Part D?

In 2024, Karen Xu had 15 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.