Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Asha Thomas, MD

Works at hospitals in Elmhurst, IL · Rockford, IL · Bolingbrook, IL … · Illinois

Summary

Asha Thomas, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Elmhurst, IL, Rockford, IL and Bolingbrook, IL and other places. NPI 1124171459. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Asha Thomas, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
37Years since medical school (graduated 1989)
FemaleGender (as listed)
Mercy Health System CorporationGroup practice (+1 more)

Quick answers

Which hospitals does Asha Thomas work at?
Medicare's official clinician data lists Asha Thomas at 5 hospitals: Elmhurst Memorial Hospital, Javon Bea Hospital, UChicago Medicine AdventHealth Bolingbrook, UChicago Medicine AdventHealth Hinsdale and UChicago Medicine AdventHealth La Grange. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Asha Thomas see patients?
Medicare's clinician data lists 4 practice locations, including Westchester, IL, Rockford, IL and Crystal Lake, IL. Call before your visit to confirm the address.
What is Asha Thomas's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Asha Thomas accept Medicare assignment?
Medicare's clinician data says Asha Thomas may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Asha Thomas?
(708) 938-5783, as listed in official Medicare / NPI Registry data.
What is Asha Thomas's NPI number?
1124171459. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Asha Thomas works

Medicare's Facility Affiliation Data lists Asha Thomas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Asha Thomas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Asha Thomas as a member of these groups (CMS data updated 2026-10-02).

  • Mercy Health System Corporation753 clinicians in the group
  • Rockford Health Physicians521 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Westchester

Clinicians with the same Medicare primary specialty in Westchester, IL — not a recommendation.

All internal medicine doctors in Westchester →

Clinician information

CredentialMD
Graduation year1989
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1124171459
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians