Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Rajinder Mahay, MD

Individual provider Internal Medicine Physician · NPI 1669490421

Rajinder Mahay, MD practises Internal Medicine in Granite City, Illinois. Qualified in 1986, 40 years ago. Practices with Ahs Il Medical Group LLC, a 46-clinician group. Licensed in Illinois.

Years since qualifying
40
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2044 Madison Ave Ste 15
Granite City, IL 62040-4641 Not confirmed with CMS for 19 years — call before visiting
Phone: (618) 451-1500
Fax: (618) 451-9484
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036088697 (IL)

Record details

NPI number1669490421
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesADDICTION MEDICINE
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Ahs Il Medical Group Llc — 46 clinicians
Accepts Medicare assignment Not indicated

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients400
Services billed 2,593 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,010 52 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Anderson Hospital Hospital · Maryville, IL
  • Gateway Regional Medical Center Hospital · Granite City, IL
  • Memorial Hospital Hospital · Belleville, IL
  • Apollo Medical Home health agency · Saint Louis, MO · listed as Apollo Medical, Inc
  • Anderson Home Health Services Home health agency · Maryville, IL
  • Elara Caring V Home health agency · Springfield, IL
  • Gateway Regional Home Health - Granite City Home health agency · Granite City, IL

Colleagues at Ahs Il Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

Other providers in Granite City