NPPES file of Aug 9, 2026

Zena Kharsa, M.D.

Obstetrics & Gynecology Physician · San Mateo, CA

Zena Kharsa, M.D. is an obstetrics & gynecology physician with a practice address in San Mateo, California, and NPI 1720422561, issued on Apr 23, 2013. Check the license (California A131768, as entered in NPPES) on the Medical Board of California; 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
1720422561
Name
Zena Kharsa
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A131768 CA
Self-reported in NPPES; status is on the state search
Practice location
222 W 39TH Ave, San Mateo, CA 94403
Phone
(650) 573-2036
Enumerated
Apr 23, 2013
Record last updated
Jan 7, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(650) 573-2236
Medicare enrollment
Enrolled (PECOS I20170621002373); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 222 W 39TH Ave

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

  1. Jesse Adams, M.D.Psychiatry Physician1407143399
  2. Stacey Adelson, NPNurse Practitioner1104951797
  3. Brita Almog, MDPediatrics Physician1033402847
  4. John Anderson, MDObstetrics & Gynecology Physician1013082429
  5. Shea AndersonClinical Social Worker1689964991
  6. Zohra Ansari, MSWClinical Social Worker1326462904

Verify Zena Kharsa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A131768
    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
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

37 Medicare Part D claims for 11 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Zena Kharsa37
  2. Specialty average165

Most prescribed

  1. Premarin13 claims

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: $24.03

1 payment: food and beverage; the largest payer was Dexcom, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zena Kharsa$24.03
  2. Specialty average$1,030.61

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

Bills Medicare through one group practice

  1. County OF San MateoSan Mateo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Zena Kharsa among 5,088 obstetrics & gynecology physician records in California

Zena Kharsa, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 78% of them.

  • NPI issued2013 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2013 · median 2004 among the 2,700 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. John Anderson, MDSan Mateo, CA 944031013082429
  2. Caroline Bowker, MDSan Mateo, CA 944031992876254
  3. Diana Douglass, MDSan Mateo, CA 944031457421901
  4. William Lock, MDSan Mateo, CA 944031770656753
  5. James Meier, MDSan Mateo, CA 944031316011034
  6. Ana Mummah, MDSan Mateo, CA 944031588734073
  7. Scott Oesterling, MDSan Mateo, CA 944031457422701
  8. Andrea Quintana, MDSan Mateo, CA 944031225462658

Common questions

What is Zena Kharsa, M.D.'s NPI number?

Zena Kharsa, M.D.'s National Provider Identifier (NPI) is 1720422561, issued on Apr 23, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Zena Kharsa, M.D. located?

The NPPES record lists a practice address at 222 W 39TH Ave, San Mateo, CA, 94403. Phone: (650) 573-2036. Providers update this record themselves, so call before visiting.

How can I verify Zena Kharsa, M.D.'s license?

NPPES lists California license number A131768, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Zena Kharsa, M.D. prescribe under Medicare Part D?

In 2024, Zena Kharsa, M.D. had 37 Medicare Part D claims for 11 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.