NPPES file of Aug 9, 2026

Yousuf Sadiq, MD

Internal Medicine Physician · Rialto, CA

Yousuf Sadiq, MD is an internal medicine physician with a practice address in Rialto, California, and NPI 1417067588, issued on Aug 30, 2006. Check the license (California A43898, 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
1417067588
Name
Yousuf Sadiq
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A43898 CA
Self-reported in NPPES; status is on the state search
Practice location
279 West Rialto Avenue, Rialto, CA 92376
Phone
(909) 820-7377
Enumerated
Aug 30, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(909) 820-7379
Medicaid ID
00A438981 CA
Medicare enrollment
Enrolled (PECOS I20100519000663); 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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Verify Yousuf Sadiq in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A43898
    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

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89% more Medicare Part D claims than the average internal medicine physician in 2024

5,991 Medicare Part D claims for 265 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 80 claims were for opioids.

  1. Yousuf Sadiq5,991
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium276 claims
  2. Amlodipine Besylate251 claims
  3. Rosuvastatin Calcium249 claims
  4. Lisinopril235 claims
  5. Gabapentin203 claims
  6. Levothyroxine Sodium168 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: $70.39

3 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim 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.

  1. Yousuf Sadiq$70.39
  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.

Yousuf Sadiq among 17,696 internal medicine physician records in California

Yousuf Sadiq, 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
  • Graduated1972 · median 2004 among the 11,065 with a school on file
  • Record last updated2007 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Natasha Alexander, MDRialto, CA 923761255615530
  2. Paul Chen, M.D.Rialto, CA 923761588689350
  3. Hedyeh Golshan, M.D.Rialto, CA 923761174582688
  4. Ikechi Obiocha, MDRialto, CA 923761467479295
  5. Charles Sabbah, M.D.Rialto, CA 923761467491118
  6. Ravindranath Shahane, M.D.Rialto, CA 923761457420903
  7. Sun Soung, M.D.Rialto, CA 923761295893162
  8. Hiteshi Thakker, M.D.Rialto, CA 923761437437134

Common questions

What is Yousuf Sadiq, MD's NPI number?

Yousuf Sadiq, MD's National Provider Identifier (NPI) is 1417067588, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Yousuf Sadiq, MD located?

The NPPES record lists a practice address at 279 West Rialto Avenue, Rialto, CA, 92376. Phone: (909) 820-7377. Providers update this record themselves, so call before visiting.

How can I verify Yousuf Sadiq, MD's license?

NPPES lists California license number A43898, 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 Yousuf Sadiq, MD prescribe under Medicare Part D?

In 2024, Yousuf Sadiq, MD had 5,991 Medicare Part D claims for 265 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.