Quick answers
- Which hospitals does Umber Ahmad work at?
- Medicare's official clinician data lists Umber Ahmad at 5 hospitals: Javon Bea Hospital, Mercy Harvard Hospital, Mercy Health System Corp, Mercy Walworth Hospital & Medical Center and Mercyhealth Hospital & Physician Clinic-Crystal LA…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Umber Ahmad see patients?
- Medicare's clinician data lists 3 practice locations, including Janesville, WI, Crystal Lake, IL and Harvard, IL. Call before your visit to confirm the address.
- What is Umber Ahmad's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Umber Ahmad accept Medicare assignment?
- Yes. Medicare's clinician data says Umber Ahmad 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.
- Does Umber Ahmad offer telehealth?
- Medicare's clinician data says Umber Ahmad offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Umber Ahmad?
- (608) 756-7100, as listed in official Medicare / NPI Registry data.
- What is Umber Ahmad's NPI number?
- 1083957153. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Umber Ahmad works
Medicare's Facility Affiliation Data lists Umber Ahmad at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Javon Bea HospitalRockford, IL · Acute Care Hospital · closed, according to its website · CCN 140239
- Mercy Harvard HospitalHarvard, IL · Critical Access Hospital · CCN 141335
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · CCN 520066
- Mercy Walworth Hospital & Medical CenterLake Geneva, WI · Critical Access Hospital · CCN 521357
- Mercyhealth Hospital & Physician Clinic-Crystal LA…Crystal Lake, IL · Acute Care Hospital · CCN 140308
Practice locations
Addresses where Umber Ahmad is enrolled with Medicare (CMS data updated 2026-10-02).
- 3524 E Milwaukee StJanesville, WI 53546 (608) 756‑7100
- 875 S Route 31Crystal Lake, IL 60014 (779) 220‑5500
- 901 Grant StHarvard, IL 60033 (815) 943‑5431
Group practices
Medicare enrollment lists Umber Ahmad as a member of this group (CMS data updated 2026-10-02).
- Mercy Health System Corporation753 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083957153 |
| 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