NPPES file of Aug 9, 2026

Martin Dan Rubinger, M.D.

Internal Medicine Physician · Santa Rosa, CA

Martin Dan Rubinger, M.D. is an internal medicine physician with a practice address in Santa Rosa, California, and NPI 1215995337, issued on May 1, 2006. Check the license (California A35169, 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
1215995337
Name
Martin Dan Rubinger
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A35169 CA
Self-reported in NPPES; status is on the state search
Practice location
4720 Hoen Ave, Santa Rosa, CA 95405
Phone
(707) 526-0310
Enumerated
May 1, 2006
Record last updated
Jul 13, 2026
Fax
(707) 526-0360
Medicaid ID
00A351690 CA
Medicare enrollment
Enrolled (PECOS I20080520000473); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4720 Hoen Ave

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

  1. Edward Feldman, M.D.Ophthalmology Physician1699770396
  2. Bruce Gaynor, MDSpecialist1972534253
  3. Allen Gruber, M.DPain Medicine (Anesthesiology) Physician1689747602

Verify Martin Dan Rubinger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A35169
    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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30% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,218 Medicare Part D claims for 124 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. 143 claims were for opioids.

  1. Martin Rubinger2,218
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium109 claims
  2. Gabapentin94 claims
  3. Atorvastatin Calcium92 claims
  4. Hydrocodone-Acetaminophen69 claims
  5. Tamsulosin Hcl67 claims
  6. Trazodone Hcl66 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.

Martin Dan Rubinger among 17,696 internal medicine physician records in California

Martin Dan Rubinger, 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1976 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 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).

98 internal medicine physician records list a practice address in Santa Rosa

They are 98 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nicholas Anton, MDSanta Rosa, CA 954051659364933
  2. George Bisbee, MDSanta Rosa, CA 954051235122516
  3. David Capaccio, DOSanta Rosa, CA 954051457355364
  4. David Charp, M.D.Santa Rosa, CA 954051053335208
  5. Catherine Davis, MDSanta Rosa, CA 954051497748776
  6. Marlon Decastro, M.D.Santa Rosa, CA 954051780643270
  7. John Hurwitz, DOSanta Rosa, CA 954051124018262
  8. Adina Logan, M.D.Santa Rosa, CA 954051881667178

Common questions

What is Martin Dan Rubinger, M.D.'s NPI number?

Martin Dan Rubinger, M.D.'s National Provider Identifier (NPI) is 1215995337, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martin Dan Rubinger, M.D. located?

The NPPES record lists a practice address at 4720 Hoen Ave, Santa Rosa, CA, 95405. Phone: (707) 526-0310. Providers update this record themselves, so call before visiting.

How can I verify Martin Dan Rubinger, M.D.'s license?

NPPES lists California license number A35169, 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 Martin Dan Rubinger, M.D. prescribe under Medicare Part D?

In 2024, Martin Dan Rubinger, M.D. had 2,218 Medicare Part D claims for 124 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.