Registry data as of Aug 27, 2026

Upinder Basi, MD

Internal Medicine Physician · Oakdale, CA

Upinder Basi, MD is an internal medicine physician with a practice address in Oakdale, California, and NPI 1891782009, issued on Oct 3, 2005. Check the license (California A065829, as entered in NPPES) 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
1891782009
Name
Upinder Basi
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A065829 CA
Self-reported in NPPES; status is on the state search
Practice location
1425 W H St, Oakdale, CA 95361
Phone
(209) 847-0314
Enumerated
Oct 3, 2005
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.
Download card Updates feed

Also registered at 1425 W H St

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

  1. Andres Arellano, M.D.Internal Medicine Physician1306917430
  2. Krystyna Belski, M.D.Pediatrics Physician1366478414
  3. Bruce Blackhart, M.D.Family Medicine Physician1700874286
  4. Mark Cook, M.D.Family Medicine Physician1750379236
  5. Rebecca Day, PA - FNPMedical Physician Assistant1740292739
  6. Albert Gelders, M.D.Family Medicine Physician1417945999

Verify Upinder Basi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A065829
    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.

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

5.6 times the Medicare Part D claims of the average internal medicine physician in 2024

15,615 Medicare Part D claims for 939 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 516 claims were for opioids.

  1. Upinder Basi15,615
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium849 claims
  2. Levothyroxine Sodium689 claims
  3. Amlodipine Besylate602 claims
  4. Losartan Potassium532 claims
  5. Gabapentin434 claims
  6. Furosemide397 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: $118.89

6 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Upinder Basi$118.89
  2. Specialty average$2,536.66

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

One hospital or facility affiliation

  1. Chaitanya N. Mahida M.D., IncOakdale, 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.

7 internal medicine physician records list a Oakdale practice address

They are 7 of the 207 NPPES records with a Oakdale practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Upinder Basi, MD's NPI number?

Upinder Basi, MD's National Provider Identifier (NPI) is 1891782009, issued on Oct 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Upinder Basi, MD located?

The NPPES record lists a practice address at 1425 W H St, Oakdale, CA, 95361. Phone: (209) 847-0314. Providers update this record themselves, so call before visiting.

How can I verify Upinder Basi, MD's license?

NPPES lists California license number A065829, 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 Upinder Basi, MD prescribe under Medicare Part D?

In 2024, Upinder Basi, MD had 15,615 Medicare Part D claims for 939 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.