Mark Zyman, M.D.
Obstetrics & Gynecology Physician · La Mesa, CA
Mark Zyman, M.D. is an obstetrics & gynecology physician with a practice address in La Mesa, California, and NPI 1285989350, issued on Jul 16, 2012. Check the license (California A128815, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Zyman
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A128815 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5525 Grossmont Center Dr, La Mesa, CA 91942
- Phone
- (619) 644-6908
- Enumerated
- Jul 16, 2012
- Record last updated
- May 5, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (619) 644-6960
- Medicare enrollment
- Enrolled (PECOS I20160919000711); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 5525 Grossmont Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cynthia Adams, PA-CMedical Physician Assistant1447564141
- Alicia Afrah-Boateng, PA-CPhysician Assistant1174073886
- Sonal Agrawal, M.D.Pediatrics Physician1881702348
- Mary Alexander, M.D.Internal Medicine Physician1538177845
- James Amberg, MDFamily Medicine Physician1265497093
Verify Mark Zyman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A128815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
111 Medicare Part D claims for 42 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol42 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $25.37
1 payment: food and beverage; the largest payer was CooperSurgical, 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.
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
- Sharp Rees-Stealy Medical Group IncLa Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Zyman among 5,088 obstetrics & gynecology physician records in California
Mark Zyman, 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 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2012 · median 2004 among the 2,700 with a school on file
- Record last updated2017 · 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.
All 5,088 in California → Every provider in La Mesa → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elise Brown, MDLa Mesa, CA 919421801893201
- Tracie Davis, M.D., FACOGLa Mesa, CA 919421275680738
- Kevin Fulford, MDLa Mesa, CA 919421063594612
- Frank Goicoechea, M.D.La Mesa, CA 919421447366836
- Leslie Gray, M.D.La Mesa, CA 919421518977503
- Galen Hansen, MDLa Mesa, CA 919421841202736
- Andrea Journagin, M.D.La Mesa, CA 919421457528879
- Christopher Lafferty, M.D.La Mesa, CA 919421821008350
Common questions
What is Mark Zyman, M.D.'s NPI number?
Mark Zyman, M.D.'s National Provider Identifier (NPI) is 1285989350, issued on Jul 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mark Zyman, M.D. located?
The NPPES record lists a practice address at 5525 Grossmont Center Dr, La Mesa, CA, 91942. Phone: (619) 644-6908. Providers update this record themselves, so call before visiting.
How can I verify Mark Zyman, M.D.'s license?
NPPES lists California license number A128815, 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 Mark Zyman, M.D. prescribe under Medicare Part D?
In 2024, Mark Zyman, M.D. had 111 Medicare Part D claims for 42 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Mark Zyman, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.