Alan H. Marx, MD
Psychiatry Physician · San Carlos, CA
Alan H. Marx, MD is a psychiatry physician with a practice address in San Carlos, California, and NPI 1902984529, issued on Nov 1, 2006. Check the license (California C35978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alan H. Marx
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C35978 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 Industrial RD, San Carlos, CA 94070
- Phone
- (650) 596-4195
- Enumerated
- Nov 1, 2006
- Record last updated
- May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00C359780 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 301 Industrial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Katrina Abad, AGPCNP-BCNurse Practitioner1306394952
- Maryam Adeel, M.D.Family Medicine Physician1285163998
- Jennifer Akazawa, MDFamily Medicine Physician1457971772
- Sarah Alamillo, PA-CPhysician Assistant1306349352
- Judith Alderman, N.P.Nurse Practitioner1407225121
- Omar Aljundi, NPNurse Practitioner1811464811
Verify Alan H. Marx in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C35978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average psychiatry physician in 2024
397 Medicare Part D claims for 41 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Bupropion Xl31 claims
- Bupropion Hcl Sr30 claims
- Trazodone Hcl30 claims
- Escitalopram Oxalate29 claims
- Duloxetine Hcl24 claims
- Venlafaxine Hcl Er24 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.
Alan H. Marx among 8,673 psychiatry physician records in California
Alan H. Marx, MD is one of 8,673 psychiatry physician 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Carlos → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Noah Degaetano, M.D.San Carlos, CA 940701326247644
- Kisani Ogwaro, M.D.San Carlos, CA 940701518128883
- Lada Alexeenko, MDSan Bruno, CA 940661982870457
- Daryl BrowneSan Bruno, CA 940661225249295
- Maria Demosthenous, D.O.San Bruno, CA 940661992904064
- Evelyn Alarcon, MDRedwood City, CA 940631386873610
- Raya Almufti, M.D.Redwood City, CA 940631770742025
- Alexander Clarke, M.D.Redwood City, CA 940631982091062
Common questions
What is Alan H. Marx, MD's NPI number?
Alan H. Marx, MD's National Provider Identifier (NPI) is 1902984529, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alan H. Marx, MD located?
The NPPES record lists a practice address at 301 Industrial RD, San Carlos, CA, 94070. Phone: (650) 596-4195. Providers update this record themselves, so call before visiting.
How can I verify Alan H. Marx, MD's license?
NPPES lists California license number C35978, 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 Alan H. Marx, MD prescribe under Medicare Part D?
In 2024, Alan H. Marx, MD had 397 Medicare Part D claims for 41 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.