Gene L. Oppenheim, MD
Family Medicine Physician · Santa Monica, CA
Gene L. Oppenheim, MD is a family medicine physician with a practice address in Santa Monica, California, and NPI 1558385369, issued on Jul 26, 2006. Check the license (California G35981, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gene L. Oppenheim
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G35981 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1920 Colorado Ave, Santa Monica, CA 90404
- Phone
- (310) 319-4700
- Enumerated
- Jul 26, 2006
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (310) 393-5659
- Medicaid ID
- 00G359810 CA
- Medicare enrollment
- Enrolled (PECOS I20090828000633); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1976
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1920 Colorado Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gene L. Oppenheim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G35981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average family medicine physician in 2024
5,211 Medicare Part D claims for 498 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 148 claims were for opioids.
Most prescribed
- Atorvastatin Calcium584 claims
- Amlodipine Besylate324 claims
- Rosuvastatin Calcium275 claims
- Metformin Hcl208 claims
- Lisinopril-Hydrochlorothiazide168 claims
- Lisinopril164 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gene L. Oppenheim among 17,133 family medicine physician records in California
Gene L. Oppenheim, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1976 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 family medicine physician records list a practice address in Santa Monica
They are 192 of the 5,151 NPPES records with a practice address in Santa Monica, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Monica → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Caroline Close, MDSanta Monica, CA 904041467497024
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- Lillian Gelberg, MDSanta Monica, CA 904041639192487
- Benjamin GilmoreSanta Monica, CA 904041396770178
- Raouf Hallis, MDSanta Monica, CA 904041386688687
- Mary Marfisee, M.D.Santa Monica, CA 904041700829934
- James Murray, MDSanta Monica, CA 904041659307452
- Michael Nagata, MDSanta Monica, CA 904041124054184
Common questions
What is Gene L. Oppenheim, MD's NPI number?
Gene L. Oppenheim, MD's National Provider Identifier (NPI) is 1558385369, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gene L. Oppenheim, MD located?
The NPPES record lists a practice address at 1920 Colorado Ave, Santa Monica, CA, 90404. Phone: (310) 319-4700. Providers update this record themselves, so call before visiting.
How can I verify Gene L. Oppenheim, MD's license?
NPPES lists California license number G35981, 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 Gene L. Oppenheim, MD prescribe under Medicare Part D?
In 2024, Gene L. Oppenheim, MD had 5,211 Medicare Part D claims for 498 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.