Gary B. Marcus, M.D.
Cardiovascular Disease Physician · San Pablo, CA
Gary B. Marcus, M.D. is a cardiovascular disease physician with a practice address in San Pablo, California, and NPI 1073526646, issued on Aug 14, 2006. Check the license (California C28611, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gary B. Marcus
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- C28611 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2101 Vale RD, San Pablo, CA 94806
- Phone
- (510) 233-9300
- Enumerated
- Aug 14, 2006
- Record last updated
- Jul 11, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 233-9299
- Medicaid ID
- 00C286110 CA
- Medicare enrollment
- Enrolled (PECOS I20041208000543); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1962
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2101 Vale RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Anton, M.D.Cardiovascular Disease Physician1417960071
- Stephen Arnold, M.D.Cardiovascular Disease Physician1023021680
- Rosemary Boss, RPHPharmacist1699830034
- Henry Chen, M.D.Clinical Cardiac Electrophysiology Physician1154526895
- Robert Fox, MDNeurology Physician1417923145
- David Hill, M.D.Cardiovascular Disease Physician1902819576
Verify Gary B. Marcus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C28611Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,016 Medicare Part D claims for 92 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 63 claims were for opioids.
Most prescribed
- Atorvastatin Calcium85 claims
- Metoprolol Succinate77 claims
- Amlodipine Besylate68 claims
- Hydrochlorothiazide47 claims
- Lisinopril47 claims
- Xarelto46 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: $56.70
3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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.
Gary B. Marcus among 2,574 cardiovascular disease physician records in California
Gary B. Marcus, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1962 · median 1999 among the 1,742 with a school on file
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 cardiovascular disease physician records list a practice address in San Pablo
They are 10 of the 517 NPPES records with a practice address in San Pablo, and 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in San Pablo → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Steven Anton, M.D.San Pablo, CA 948061417960071
- Stephen Arnold, M.D.San Pablo, CA 948061023021680
- Matthew Auyoung, M.D.San Pablo, CA 948061053707190
- David Hill, M.D.San Pablo, CA 948061902819576
- William Hindle-Katel, M.D.San Pablo, CA 948061376955773
- Ramon Lee, MDSan Pablo, CA 948061215496427
- Richard Stern, M.D.San Pablo, CA 948061760495337
- David Weiland, M.D.San Pablo, CA 948061659384121
Common questions
What is Gary B. Marcus, M.D.'s NPI number?
Gary B. Marcus, M.D.'s National Provider Identifier (NPI) is 1073526646, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary B. Marcus, M.D. located?
The NPPES record lists a practice address at 2101 Vale RD, San Pablo, CA, 94806. Phone: (510) 233-9300. Providers update this record themselves, so call before visiting.
How can I verify Gary B. Marcus, M.D.'s license?
NPPES lists California license number C28611, 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 Gary B. Marcus, M.D. prescribe under Medicare Part D?
In 2024, Gary B. Marcus, M.D. had 1,016 Medicare Part D claims for 92 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.