Steven Gelber, M.D.
Internal Medicine Physician · Rohnert Park, CA
Steven Gelber, M.D. is an internal medicine physician with a practice address in Rohnert Park, California, and NPI 1144495326, issued on Apr 28, 2008. Check the license (California A110927, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Gelber
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A110927 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5900 State Farm Dr, Rohnert Park, CA 94928
- Phone
- (707) 206-3044
- Enumerated
- Apr 28, 2008
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20120109000142); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5900 State Farm Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Steven Gelber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average internal medicine physician in 2024
5,228 Medicare Part D claims for 938 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 278 claims were for opioids.
Most prescribed
- Atorvastatin Calcium391 claims
- Lisinopril251 claims
- Levothyroxine Sodium219 claims
- Losartan Potassium181 claims
- Hydrocodone-Acetaminophen172 claims
- Albuterol Sulfate Hfa158 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Gelber among 17,696 internal medicine physician records in California
Steven Gelber, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2008 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Rohnert Park
They are 9 of the 483 NPPES records with a practice address in Rohnert Park, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Rohnert Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nana Barnes, MDRohnert Park, CA 949281063900520
- Michael Bunce, MDRohnert Park, CA 949281740369875
- Sara Ganeless Levine, MDRohnert Park, CA 949281326122490
- Paul Johnson, MDRohnert Park, CA 949281881778876
- Hyejo Jun, MDRohnert Park, CA 949281982946547
- Arnold Loo, D.O.Rohnert Park, CA 949281063716918
- Nicholas Regennitter, MDRohnert Park, CA 949281013591031
- Bridgit Travinsky, M.D.Rohnert Park, CA 949281295153930
Common questions
What is Steven Gelber, M.D.'s NPI number?
Steven Gelber, M.D.'s National Provider Identifier (NPI) is 1144495326, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Steven Gelber, M.D. located?
The NPPES record lists a practice address at 5900 State Farm Dr, Rohnert Park, CA, 94928. Phone: (707) 206-3044. Providers update this record themselves, so call before visiting.
How can I verify Steven Gelber, M.D.'s license?
NPPES lists California license number A110927, 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 Steven Gelber, M.D. prescribe under Medicare Part D?
In 2024, Steven Gelber, M.D. had 5,228 Medicare Part D claims for 938 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.