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Physician Profile

Gary B. Marcus, M.D.

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At a glance

About Dr. Marcus

Gary B. Marcus, M.D. practices cardiovascular disease (cardiology) in San Pablo, CA. Gary is a 1962 graduate of University of Cincinnati College of Medicine. Gary is also listed as specializing in cardiovascular disease. According to Medicare claims data, Gary cared for 114 Medicare patients across 282 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1073526646.

Factual summary compiled by Guide.md from public records; not written by this provider.

Credentials & Licensing

CA · Physician and Surgeon CMedical Board of California
No. 28611CurrentExpires Jun 2027Since 1966
NPINational Provider Identifier
1073526646Issued 2006

Snapshot · verify with the board ↗

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Gary B. Marcus specialize in?

Gary B. Marcus is a cardiovascular disease (cardiology) in San Pablo, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Gary B. Marcus located?

Gary B. Marcus is listed at 2101 Vale Rd Suite 201, San Pablo, CA 94806. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Gary B. Marcus's phone number?

The number on file is (510) 233-9300. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Gary B. Marcus's NPI number?

Gary B. Marcus's National Provider Identifier is 1073526646. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Where did Gary B. Marcus train?

Gary B. Marcus attended University of Cincinnati College of Medicine, graduating in 1962. This comes from the CMS National Downloadable File.

CMS public data

How long has Gary B. Marcus been practicing?

Gary B. Marcus has 64 years experience. Calculated from a graduation year of 1962, reported in the CMS National Downloadable File.

CMS public data

What does Gary B. Marcus do most often?

According to Medicare billing data, Gary B. Marcus the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Has Gary B. Marcus confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Gary B. Marcus. If this is you, claiming it is free.

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