NPPES file of Aug 9, 2026

Sumit Mahajan, MD

Internal Medicine Physician · Yucca Valley, CA

Sumit Mahajan, MD is an internal medicine physician with a practice address in Yucca Valley, California, and NPI 1659350916, issued on Jan 13, 2006. Check the license (California A80732, 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
1659350916
Name
Sumit Mahajan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A80732 CA
Self-reported in NPPES; status is on the state search
Practice location
57402 29 Palms Hwy Ste 5, Yucca Valley, CA 92284
Phone
(760) 228-1114
Enumerated
Jan 13, 2006
Record last updated
Aug 4, 2022
Fax
(760) 228-2066
Medicaid ID
00A807320 CA
Medicare enrollment
Enrolled (PECOS I20060908000327); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 57402 29 Palms Hwy Ste 5

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

  1. Jeffrey Seip, MDOrthopaedic Surgery Physician1275649782

Verify Sumit Mahajan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A80732
    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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4.7 times the Medicare Part D claims of the average internal medicine physician in 2024

14,903 Medicare Part D claims for 862 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 472 claims were for opioids.

  1. Sumit Mahajan14,903
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium712 claims
  2. Lisinopril627 claims
  3. Amlodipine Besylate467 claims
  4. Meloxicam450 claims
  5. Levothyroxine Sodium425 claims
  6. Omeprazole417 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.

Industry payments in 2024: $678.11

20 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sumit Mahajan$678.11
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Indroj Medical Group Inc.Yucca Valley, CA

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

Sumit Mahajan among 17,696 internal medicine physician records in California

Sumit Mahajan, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 internal medicine physician records list a practice address in Yucca Valley

They are 6 of the 645 NPPES records with a practice address in Yucca Valley, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jack Cruikshank, MDYucca Valley, CA 922841720746662
  2. Robert Evans, MDYucca Valley, CA 922841184603441
  3. Dae Yong Kim, MDYucca Valley, CA 922841679094981
  4. Prem Salhotra, M.D.Yucca Valley, CA 922841457302812
  5. Jim Wu, MDYucca Valley, CA 922841285605014
  6. Kevin Kohler, M.D.Winterhaven, CA 922831497281521
  7. Dennis Datuin, DOTwentynine Palms, CA 922781467926857
  8. Avery Johnson, MDTwentynine Palms, CA 922781780277194

Common questions

What is Sumit Mahajan, MD's NPI number?

Sumit Mahajan, MD's National Provider Identifier (NPI) is 1659350916, issued on Jan 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sumit Mahajan, MD located?

The NPPES record lists a practice address at 57402 29 Palms Hwy Ste 5, Yucca Valley, CA, 92284. Phone: (760) 228-1114. Providers update this record themselves, so call before visiting.

How can I verify Sumit Mahajan, MD's license?

NPPES lists California license number A80732, 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 Sumit Mahajan, MD prescribe under Medicare Part D?

In 2024, Sumit Mahajan, MD had 14,903 Medicare Part D claims for 862 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.