Stephen Weiss
Surgery Physician · Martinez, CA
Stephen Weiss is a surgery physician with a practice address in Martinez, California, and NPI 1528138427, issued on Nov 8, 2006. Check the license (California A40701, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Weiss
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A40701 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Alhambra Ave, Martinez, CA 94553
- Phone
- (925) 370-5110
- Enumerated
- Nov 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (925) 370-5142
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 2500 Alhambra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Weiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A40701Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average surgery physician in 2024
60 Medicare Part D claims for 23 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen15 claims
- Anastrozole11 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: $79.93
1 payment: food and beverage; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Stephen Weiss among 3,118 surgery physician records in California
Stephen Weiss is one of 3,118 surgery physician records with a practice address in California. 75% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Martinez → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Michael Bloomstein, MDMartinez, CA 945531538247614
- Eve CominosMartinez, CA 945531083784136
- Stuart FormanMartinez, CA 945531730250309
- William Ku, MDMartinez, CA 945531609940915
- Mauricio Kuri, MDMartinez, CA 945531811025471
- Judy Lively, MDMartinez, CA 945531083786735
- Bruce McCreery, MDMartinez, CA 945531447338546
- Venkataraman Muthusamy, M.DMartinez, CA 945531073580593
Common questions
What is Stephen Weiss's NPI number?
Stephen Weiss's National Provider Identifier (NPI) is 1528138427, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Weiss located?
The NPPES record lists a practice address at 2500 Alhambra Ave, Martinez, CA, 94553. Phone: (925) 370-5110. Providers update this record themselves, so call before visiting.
How can I verify Stephen Weiss's license?
NPPES lists California license number A40701, 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 Stephen Weiss prescribe under Medicare Part D?
In 2024, Stephen Weiss had 60 Medicare Part D claims for 23 beneficiaries; the average among surgery physician prescribers was 147. 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.