Hiteshi Thakker, M.D.
Internal Medicine Physician · Rialto, CA
Hiteshi Thakker, M.D. is an internal medicine physician with a practice address in Rialto, California, and NPI 1437437134, issued on Jul 28, 2011. Check the license (California A127447, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hiteshi Thakker
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A127447 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1851 N Riverside Ave, Rialto, CA 92376
- Phone
- (909) 583-2741
- Enumerated
- Jul 28, 2011
- Record last updated
- Apr 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 1029458180001 PA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1851 N Riverside Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Adrienne Burn, FNPFamily Nurse Practitioner1700160546
- Camille Chano, MDFamily Medicine Physician1083029425
- Linnea Chaves, RN FNPFamily Nurse Practitioner1992115018
Verify Hiteshi Thakker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A127447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average internal medicine physician in 2024
757 Medicare Part D claims for 186 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Atorvastatin Calcium69 claims
- Metformin Hcl56 claims
- Losartan Potassium37 claims
- Lisinopril31 claims
- Hydrochlorothiazide29 claims
- Diclofenac Sodium23 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: $146.29
5 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hiteshi Thakker among 17,696 internal medicine physician records in California
Hiteshi Thakker, M.D. 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2018 · 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).
12 internal medicine physician records list a practice address in Rialto
They are 12 of the 1,044 NPPES records with a practice address in Rialto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Rialto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Natasha Alexander, MDRialto, CA 923761255615530
- Paul Chen, M.D.Rialto, CA 923761588689350
- Hedyeh Golshan, M.D.Rialto, CA 923761174582688
- Ikechi Obiocha, MDRialto, CA 923761467479295
- Charles Sabbah, M.D.Rialto, CA 923761467491118
- Yousuf Sadiq, MDRialto, CA 923761417067588
- Ravindranath Shahane, M.D.Rialto, CA 923761457420903
- Sun Soung, M.D.Rialto, CA 923761295893162
Common questions
What is Hiteshi Thakker, M.D.'s NPI number?
Hiteshi Thakker, M.D.'s National Provider Identifier (NPI) is 1437437134, issued on Jul 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Hiteshi Thakker, M.D. located?
The NPPES record lists a practice address at 1851 N Riverside Ave, Rialto, CA, 92376. Phone: (909) 583-2741. Providers update this record themselves, so call before visiting.
How can I verify Hiteshi Thakker, M.D.'s license?
NPPES lists California license number A127447, 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 Hiteshi Thakker, M.D. prescribe under Medicare Part D?
In 2024, Hiteshi Thakker, M.D. had 757 Medicare Part D claims for 186 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.