NPPES file of Aug 9, 2026

Martin J. Weissman, M.D.

Urology Physician · Orange, CA

Martin J. Weissman, M.D. is a urology physician with a practice address in Orange, California, and NPI 1629096862, issued on Jul 17, 2006. Check the license (California A21754, 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
1629096862
Name
Martin J. Weissman
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
A21754 CA
Self-reported in NPPES; status is on the state search
Practice location
1140 W LA Veta Ave, Orange, CA 92868
Phone
(714) 543-3300
Enumerated
Jul 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(714) 543-2449
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 1140 W LA Veta Ave

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

  1. Edwin Alexander, M.D.Internal Medicine Physician1659315752
  2. Faramarz Alizadeh-Shabdiz, M.DOtolaryngology Physician1790955052
  3. Navin Amin, M.D.Otolaryngology Physician1851390314
  4. Shruti Ariza, MDGastroenterology Physician1962657023
  5. Jeffrey Ballard, M.D.Vascular Surgery Physician1205837200
  6. Anjan Batra, MDPediatric Cardiology Physician1558453258

Verify Martin J. Weissman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A21754
    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

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98% fewer Medicare Part D claims than the average urology physician in 2024

23 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Martin Weissman23
  2. Specialty average1,340

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.

Martin J. Weissman among 1,524 urology physician records in California

Martin J. Weissman, M.D. is one of 1,524 urology physician records with a practice address in California. 82% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 51% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California.

The 8 urology physician records with the nearest ZIP codes

  1. Thomas Ahlering, M.D.Orange, CA 928681013983386
  2. David Chamberlin, MDOrange, CA 928681205861994
  3. Akhil Das, MDOrange, CA 928681053310821
  4. Bela Denes, M.D.Orange, CA 928681811943129
  5. Joel Gelman, M.D.Orange, CA 928681275640047
  6. Gamal M. Ghoniem, M.D.Orange, CA 928681467415919
  7. Feraidoun Khonsari, M.D.Orange, CA 928681487612560
  8. Luis Kobashi, M.D.Orange, CA 928681710963095

Common questions

What is Martin J. Weissman, M.D.'s NPI number?

Martin J. Weissman, M.D.'s National Provider Identifier (NPI) is 1629096862, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martin J. Weissman, M.D. located?

The NPPES record lists a practice address at 1140 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 543-3300. Providers update this record themselves, so call before visiting.

How can I verify Martin J. Weissman, M.D.'s license?

NPPES lists California license number A21754, 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 Martin J. Weissman, M.D. prescribe under Medicare Part D?

In 2024, Martin J. Weissman, M.D. had 23 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.