Rajinder Mahay, MD
Internal Medicine Physician · Granite City, IL
Rajinder Mahay, MD is an internal medicine physician with a practice address in Granite City, Illinois, and NPI 1669490421, issued on Jul 18, 2006. Check the license (Illinois 036088697, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Rajinder Mahay
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036088697 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2044 Madison Ave, Granite City, IL 62040
- Phone
- (618) 451-1500
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (618) 451-9484
- Medicaid ID
- 036088697 IL
- Medicare enrollment
- Enrolled (PECOS I20061020000148); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2044 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Debra Clark, RNPediatric Registered Nurse1508079328
- Lawrence Harmon, MDInternal Medicine Physician1275526956
- Rod Hartzel, MDInternal Medicine Physician1881688745
- Christopher Knapp, MD, MPHOccupational Medicine Physician1245201920
- Elizabeth Mincy, APRN-CAdult Health Nurse Practitioner1922233576
- Paul Pace, M.D.Surgery Physician1528222437
Verify Rajinder Mahay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036088697Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.2 times the Medicare Part D claims of the average internal medicine physician in 2024
16,593 Medicare Part D claims for 925 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. 136 claims were for opioids.
Most prescribed
- Atorvastatin Calcium922 claims
- Amlodipine Besylate659 claims
- Lisinopril628 claims
- Levothyroxine Sodium504 claims
- Gabapentin482 claims
- Metoprolol Succinate427 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.
The MIPS final score for 2023 (Medicare payment program): 23.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $672.68
35 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Bills Medicare through one group practice
- Ahs IL Medical Group LLCGranite City, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
11 internal medicine physician records list a practice address in Granite City
They are 11 of the 338 NPPES records with a practice address in Granite City, and 7,238 internal medicine physician records in Illinois.
All 11 in Granite City → All 7,238 in Illinois → Every provider in Granite City →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Elmer Abbo, MDBurr Ridge, IL1710048541
- Paul Abbo, M.D.River Forest, IL1083693378
Common questions
What is Rajinder Mahay, MD's NPI number?
Rajinder Mahay, MD's National Provider Identifier (NPI) is 1669490421, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rajinder Mahay, MD located?
The NPPES record lists a practice address at 2044 Madison Ave, Granite City, IL, 62040. Phone: (618) 451-1500. Providers update this record themselves, so call before visiting.
How can I verify Rajinder Mahay, MD's license?
NPPES lists Illinois license number 036088697, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rajinder Mahay, MD prescribe under Medicare Part D?
In 2024, Rajinder Mahay, MD had 16,593 Medicare Part D claims for 925 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Rajinder Mahay, MD's MIPS final score?
The 2023 MIPS final score is 23.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.