NPPES file of Aug 9, 2026

Sudhir Sunder Rajan, M.D.

Critical Care Medicine (Internal Medicine) Physician · Orange, CA

Sudhir Sunder Rajan, M.D. is a critical care medicine (internal medicine) physician with a practice address in Orange, California, and NPI 1396961249, issued on Apr 18, 2007. Check the license (California A85191, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396961249
Name
Sudhir Sunder Rajan
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
A85191 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-5150
Enumerated
Apr 18, 2007
Record last updated
Sep 11, 2025
Medicare enrollment
Enrolled (PECOS I20040720000960); accepts Medicare assignment
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Sudhir Sunder Rajan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85191    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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Bills Medicare through one group practice

  1. Permanente Medical Group IncSanta Clara, CA

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

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

All 723 in California → Every provider in Orange →

Other critical care medicine (internal medicine) physician records in California

  1. Mariam Abdelkader, MDFresno, CA1689022824
  2. Hazem Abdelsalam, M.D.Torrance, CA1346793312
  3. Unknown Abdul Hameed Zaid, M.B,B.SLoma Linda, CA1679908800
  4. Glen Abergel, M.D.Oxnard, CA1093743924
  5. Ayham Aboeed, M.D.Bakersfield, CA1093969750
  6. Henry Abrons, M.D.Berkeley, CA1821001470
  7. Noman Absar, MDVallejo, CA1205908951
  8. Natalie Achamallah, M.D.West Hollywood, CA1255881546
  9. Cresencio AdamePalo Alto, CA1750021564
  10. Allen Adams, M.D.Los Angeles, CA1700862794

Common questions

What is Sudhir Sunder Rajan, M.D.'s NPI number?

Sudhir Sunder Rajan, M.D.'s National Provider Identifier (NPI) is 1396961249, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sudhir Sunder Rajan, M.D. located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-5150. Providers update this record themselves, so call before visiting.

How can I verify Sudhir Sunder Rajan, M.D.'s license?

NPPES lists California license number A85191, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.