Registry data as of Aug 27, 2026

Ganesh Nagaraj

Emergency Medicine Physician · Oakland, CA

Ganesh Nagaraj is an emergency medicine physician with a practice address in Oakland, California, and NPI 1669890885, issued on Apr 4, 2014. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1669890885
Name
Ganesh Nagaraj
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
275 W Macarthur Blvd, Oakland, CA 94611
Phone
(510) 307-1500
Enumerated
Apr 4, 2014
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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Also registered at 275 W Macarthur Blvd

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

  1. David Aaronson, MDUrology Physician1215053129
  2. Paul-Andre Abboud, M.D.Emergency Medicine Physician1710065503
  3. Brittany Abeldt, MDGeneral Practice Physician1982353884
  4. Bilal Abu-Alrub, DOStudent in an Organized Health Care Education/Training Program1609760768
  5. Walter Acuna, MDInternal Medicine Physician1972655108
  6. Brett Adams, MDStudent in an Organized Health Care Education/Training Program1841731098

Verify Ganesh Nagaraj in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

55% fewer Medicare Part D claims than the average emergency medicine physician in 2024

161 Medicare Part D claims for 110 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Ganesh Nagaraj161
  2. Specialty average355

Most prescribed

  1. Prednisone13 claims
  2. Oxycodone Hcl12 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.

One hospital or facility affiliation

  1. Permanente Medical Group IncRichmond, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

211 emergency medicine physician records list a Oakland practice address

They are 211 of the 18,558 NPPES records with a Oakland practice address, and 7,133 emergency medicine physician records in California.

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Ganesh Nagaraj's NPI number?

Ganesh Nagaraj's National Provider Identifier (NPI) is 1669890885, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Ganesh Nagaraj located?

The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 307-1500. Providers update this record themselves, so call before visiting.

How can I verify Ganesh Nagaraj's license?

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 Ganesh Nagaraj prescribe under Medicare Part D?

In 2024, Ganesh Nagaraj had 161 Medicare Part D claims for 110 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.