Quick answers
- Which hospitals does Naser M. Khan work at?
- Medicare's official clinician data lists Naser M. Khan at 5 hospitals: Carle Foundation Hospital, Javon Bea Hospital, Mercy Health System Corp, Mercy Walworth Hospital & Medical Center and St Joseph Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Naser M. Khan see patients?
- Medicare's clinician data lists 8 practice locations, including Janesville, WI, Bloomington, IL and Rockford, IL. Call before your visit to confirm the address.
- What is Naser M. Khan's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Naser M. Khan accept Medicare assignment?
- Yes. Medicare's clinician data says Naser M. Khan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Naser M. Khan?
- (608) 756-6000, as listed in official Medicare / NPI Registry data.
- What is Naser M. Khan's NPI number?
- 1437270253. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Naser M. Khan works
Medicare's Facility Affiliation Data lists Naser M. Khan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Carle Foundation HospitalUrbana, IL · Acute Care Hospital · CCN 140091
- Javon Bea HospitalRockford, IL · Acute Care Hospital · closed, according to its website · CCN 140239
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · CCN 520066
- Mercy Walworth Hospital & Medical CenterLake Geneva, WI · Critical Access Hospital · CCN 521357
- St Joseph Medical CenterBloomington, IL · Acute Care Hospital · CCN 140162
Practice locations
Addresses where Naser M. Khan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1000 Mineral Point AveJanesville, WI 53548 (608) 756‑6000
- 2200 E Washington StBloomington, IL 61701 (309) 662‑3311
- 2350 N Rockton AveRockford, IL 61103 (815) 971‑2000
- 611 W Park StUrbana, IL 61801 (888) 712‑2753
- 8201 E Riverside BlvdRockford, IL 61114 (815) 971‑2000
Group practices
Medicare enrollment lists Naser M. Khan as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- Carle Health Care Incorporated1,666 clinicians in the group
- Mercy Health System Corporation753 clinicians in the group
- Rockford Health Physicians521 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Janesville
Clinicians with the same Medicare primary specialty in Janesville, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437270253 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians