Quick answers
- Which hospitals does Thomas W. Kiesler work at?
- Medicare's official clinician data lists Thomas W. Kiesler at 2 hospitals: Northwestern Medicine Central Dupage Hospital and Northwestern Medicine Delnor Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas W. Kiesler see patients?
- Medicare's clinician data lists 2 practice locations, including Warrenville, IL and Glen Ellyn, IL. Call before your visit to confirm the address.
- What is Thomas W. Kiesler's specialty?
- Medicare lists Hand Surgery as the primary specialty, and also Orthopedic Surgery.
- Does Thomas W. Kiesler accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas W. Kiesler 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 Thomas W. Kiesler?
- (630) 225-2663, as listed in official Medicare / NPI Registry data.
- What is Thomas W. Kiesler's NPI number?
- 1790775740. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas W. Kiesler works
Medicare's Facility Affiliation Data lists Thomas W. Kiesler at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · CCN 140211
Practice locations
Addresses where Thomas W. Kiesler is enrolled with Medicare (CMS data updated 2026-10-02).
- 27650 Ferry RdWarrenville, IL 60555 (630) 225‑2663
- 885 Roosevelt RdGlen Ellyn, IL 60137 (630) 545‑3760
Group practices
Medicare enrollment lists Thomas W. Kiesler as a member of this group (CMS data updated 2026-10-02).
- Central Dupage Physician Group1,080 clinicians in the group
Specialties
- Hand Surgeryprimary
- Orthopedic Surgeryalso
Other hand surgeons in Warrenville
Clinicians with the same Medicare primary specialty in Warrenville, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790775740 |
| 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