NPPES file of Aug 9, 2026

Ronald J. Bruce, MD

Family Medicine Physician · Rohnert Park, CA

Ronald J. Bruce, MD is a family medicine physician with a practice address in Rohnert Park, California, and NPI 1275617342, issued on Oct 25, 2006. Check the license (California C43331, 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
1275617342
Name
Ronald J. Bruce
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
C43331 CA
Self-reported in NPPES; status is on the state search
Practice location
5900 State Farm Dr, Rohnert Park, CA 94928
Phone
(707) 206-3000
Enumerated
Oct 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00C433310 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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Also registered at 5900 State Farm Dr

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

  1. Aimee Aiken, MDPediatrics Physician1083803134
  2. Howard Ballinger, MDOccupational Medicine Physician1164506143
  3. Nana Barnes, MDInternal Medicine Physician1063900520
  4. Sandy Batarseh, PHARMDPharmacist1720512288
  5. Roseanne Beers, MDFamily Medicine Physician1447334412
  6. Michael Bunce, MDInternal Medicine Physician1740369875

Verify Ronald J. Bruce in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C43331
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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100% fewer Medicare Part D claims than the average family medicine physician in 2024

15 Medicare Part D claims for 15 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Ronald Bruce15
  2. Specialty average3,544

Most prescribed

  1. Adacel Tdap15 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.

33 family medicine physician records list a practice address in Rohnert Park

They are 33 of the 483 NPPES records with a practice address in Rohnert Park, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Ronald J. Bruce, MD's NPI number?

Ronald J. Bruce, MD's National Provider Identifier (NPI) is 1275617342, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald J. Bruce, MD located?

The NPPES record lists a practice address at 5900 State Farm Dr, Rohnert Park, CA, 94928. Phone: (707) 206-3000. Providers update this record themselves, so call before visiting.

How can I verify Ronald J. Bruce, MD's license?

NPPES lists California license number C43331, 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 Ronald J. Bruce, MD prescribe under Medicare Part D?

In 2024, Ronald J. Bruce, MD had 15 Medicare Part D claims for 15 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.