Russell Marc Elmer, MD
Adult Medicine Physician · Sonoma, CA
Russell Marc Elmer, MD is an adult medicine physician with a practice address in Sonoma, California, and NPI 1871539122, issued on Jun 22, 2006. Check the license (California C37670, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Russell Marc Elmer
- Credential
- MD
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- C37670 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15000 Arnold Drive, Sonoma, CA 95431
- Phone
- (707) 938-6556
- Enumerated
- Jun 22, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 15000 Arnold Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Russell Marc Elmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C37670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average adult medicine physician in 2024
13 Medicare Part D claims, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D.
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.
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
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Common questions
What is Russell Marc Elmer, MD's NPI number?
Russell Marc Elmer, MD's National Provider Identifier (NPI) is 1871539122, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Russell Marc Elmer, MD located?
The NPPES record lists a practice address at 15000 Arnold Drive, Sonoma, CA, 95431. Phone: (707) 938-6556. Providers update this record themselves, so call before visiting.
How can I verify Russell Marc Elmer, MD's license?
NPPES lists California license number C37670, 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 Russell Marc Elmer, MD prescribe under Medicare Part D?
In 2024, Russell Marc Elmer, MD had 13 Medicare Part D claims; the average among adult medicine physician prescribers was 3,002. 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.