NPPES file of Aug 9, 2026

Bart Gershbein, MD

Urology Physician · Greenbrae, CA

Bart Gershbein, MD is a urology physician with a practice address in Greenbrae, California, and NPI 1134107378, issued on Jan 6, 2006. Check the license (California 00G300310, 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
1134107378
Name
Bart Gershbein
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
00G300310 CA
Self-reported in NPPES; status is on the state search
Practice location
1300 S Eliseo Drive, Greenbrae, CA 94904
Phone
(415) 464-9988
Enumerated
Jan 6, 2006
Record last updated
Jul 13, 2026
Fax
(415) 464-9987
Medicaid ID
OOG300310 CA
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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Verify Bart Gershbein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 00G300310
    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

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

  1. Bart Gershbein22
  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.

Urology Physician providers in California

There are 1,524 urology physician records in California.

Other urology physician records in California

  1. David Aaronson, MDOakland, CA1215053129
  2. Jason Abber, MDPanorama City, CA1356366926
  3. Marc Abboud, MDLos Alamitos, CA1265096531
  4. George AbdelsayedAnaheim, CA1568721843
  5. Garen AbediDowney, CA1285909051
  6. Jennifer Abidari, MDStanford, CA1811098197
  7. Sherif Aboseif, MDOxnard, CA1093882995
  8. Parwiz Abrahimi, M.D., PH.D.Los Angeles, CA1154857613
  9. Anthony Acquaviva, MDVallejo, CA1457439283
  10. Theodore Affue, M.D.El Centro, CA1386674000

Common questions

What is Bart Gershbein, MD's NPI number?

Bart Gershbein, MD's National Provider Identifier (NPI) is 1134107378, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bart Gershbein, MD located?

The NPPES record lists a practice address at 1300 S Eliseo Drive, Greenbrae, CA, 94904. Phone: (415) 464-9988. Providers update this record themselves, so call before visiting.

How can I verify Bart Gershbein, MD's license?

NPPES lists California license number 00G300310, 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 Bart Gershbein, MD prescribe under Medicare Part D?

In 2024, Bart Gershbein, MD had 22 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.