NPPES file of Aug 9, 2026

Martin J. Garcia, M.D.

Hospitalist Physician · Oakland, CA

Martin J. Garcia, M.D. is a hospitalist physician with a practice address in Oakland, California, and NPI 1619084423, issued on Aug 25, 2006. Check the license (California A83183, 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
1619084423
Name
Martin J. Garcia
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A83183 CA
Self-reported in NPPES; status is on the state search
Practice location
350 Hawthorne Ave RM 2316, Oakland, CA 94609
Phone
(510) 869-6883
Enumerated
Aug 25, 2006
Record last updated
Sep 27, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(510) 869-6883
Medicare enrollment
Enrolled (PECOS I20050510000658); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2001
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 350 Hawthorne Ave RM 2316

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

  1. Willa Chen, MD, MPHFamily Medicine Physician1497496244
  2. Naveen Thota, MDInternal Medicine Physician1972717304

Verify Martin J. Garcia in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A83183
    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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97% fewer Medicare Part D claims than the average hospitalist physician in 2024

17 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of claims.

  1. Martin Garcia17
  2. Specialty average521

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

  1. Sutter Bay Medical FoundationFremont, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Martin J. Garcia among 3,099 hospitalist physician records in California

Martin J. Garcia, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 73% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2001 · median 2010 among the 2,505 with a school on file
  • Record last updated2019 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Matthew Dahnke, M.D.Oakland, CA 946091487762092
  2. Joann Dominguez, MDOakland, CA 946091811003809
  3. James Felt, M.D.Oakland, CA 946091073621157
  4. Leif Hass, M.D.Oakland, CA 946091528175346
  5. Erwin KuoOakland, CA 946091437266269
  6. Daniel Montes, M.D.Oakland, CA 946091487737755
  7. Lloyd Morrissey, M.D.Oakland, CA 946091801903562
  8. Alexander Ramirez, MDOakland, CA 946091538266424

Common questions

What is Martin J. Garcia, M.D.'s NPI number?

Martin J. Garcia, M.D.'s National Provider Identifier (NPI) is 1619084423, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martin J. Garcia, M.D. located?

The NPPES record lists a practice address at 350 Hawthorne Ave RM 2316, Oakland, CA, 94609. Phone: (510) 869-6883. Providers update this record themselves, so call before visiting.

How can I verify Martin J. Garcia, M.D.'s license?

NPPES lists California license number A83183, 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 J. Garcia, M.D. prescribe under Medicare Part D?

In 2024, Martin J. Garcia, M.D. had 17 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.