Quick answers
- Which hospitals does William Zimmermann work at?
- Medicare's official clinician data lists William Zimmermann at 3 hospitals: Auburn Community Hospital, Loyola Gottlieb Memorial Hospital and MacNeal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Zimmermann see patients?
- Medicare's clinician data lists 4 practice locations, including Hinsdale, IL, Naperville, IL and Auburn, NY. Call before your visit to confirm the address.
- What is William Zimmermann's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Interventional Pain Management and Pain Management.
- Does William Zimmermann accept Medicare assignment?
- Yes. Medicare's clinician data says William Zimmermann 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 William Zimmermann?
- (630) 325-5035, as listed in official Medicare / NPI Registry data.
- What is William Zimmermann's NPI number?
- 1356351845. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Zimmermann works
Medicare's Facility Affiliation Data lists William Zimmermann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Auburn Community HospitalAuburn, NY · Acute Care Hospital · CCN 330235
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- MacNeal HospitalBerwyn, IL · Acute Care Hospital · CCN 140054
Practice locations
Addresses where William Zimmermann is enrolled with Medicare (CMS data updated 2026-10-02).
- 10 Salt Creek LnHinsdale, IL 60521 (630) 325‑5035
- 1263 Rickert DrNaperville, IL 60540 (630) 305‑3300
- 17 Lansing StAuburn, NY 13021 (315) 255‑7011
- 6742 N Frostwood PkwyPeoria, IL 61615 (309) 692‑5393
Group practices
Medicare enrollment lists William Zimmermann as a member of these groups (CMS data updated 2026-10-02).
- Associated Anesthesiologists SC155 clinicians in the group
- Anesthesia Associates, Ltd31 clinicians in the group
- Auburn Medical PC25 clinicians in the group
- HSC Anesthesia Services LLC11 clinicians in the group
Specialties
- Anesthesiologyprimary
- Interventional Pain Managementalso
- Pain Managementalso
Other anesthesiologists in Hinsdale
Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356351845 |
| 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