NPPES file of Aug 9, 2026

James Michael Voss, MD

Adult Medicine Physician · Rancho Cordova, CA

James Michael Voss, MD is an adult medicine physician with a practice address in Rancho Cordova, California, and NPI 1932251733, issued on Jan 18, 2007. Check the license (California A91676, 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
1932251733
Name
James Michael Voss
Credential
MD
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
A91676 CA
Self-reported in NPPES; status is on the state search
Practice location
4055 Coratina Way, Rancho Cordova, CA 95742
Phone
(916) 524-5531
Enumerated
Jan 18, 2007
Record last updated
Feb 26, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(916) 270-2671
Medicaid ID
00A916760 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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Verify James Michael Voss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91676
    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 adult medicine physician in 2024

13 Medicare Part D claims for 13 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. James Voss13
  2. Specialty average3,002

Most prescribed

  1. Adacel Tdap13 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.

James Michael Voss among 386 adult medicine physician records in California

James Michael Voss, MD is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 49% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2019 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Mark Tambellini, M.D.Granite Bay, CA 957461902115793
  2. Thomas Statti, M.D.Roseville, CA 957471891847844
  3. Eliza Thornton, MDVacaville, CA 956871255582201
  4. Saba Azizi-Ghannad, D.O.Roseville, CA 956781295255842
  5. Breanna Bui, NPSacramento, CA 958111003555889
  6. David Hubbard, MDSacramento, CA 958111689237174
  7. Madeline Nguyen, D.O.Sacramento, CA 958111316333453
  8. Ann J Peters, M.D.Gold River, CA 956701417252685

Common questions

What is James Michael Voss, MD's NPI number?

James Michael Voss, MD's National Provider Identifier (NPI) is 1932251733, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James Michael Voss, MD located?

The NPPES record lists a practice address at 4055 Coratina Way, Rancho Cordova, CA, 95742. Phone: (916) 524-5531. Providers update this record themselves, so call before visiting.

How can I verify James Michael Voss, MD's license?

NPPES lists California license number A91676, 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 James Michael Voss, MD prescribe under Medicare Part D?

In 2024, James Michael Voss, MD had 13 Medicare Part D claims for 13 beneficiaries; 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.