Quick answers
- Which hospitals does William J. Baylis work at?
- Medicare's official clinician data lists William J. Baylis at 2 hospitals: Advocate Christ Hospital & Medical Center and Silver Cross Hospital and Medical Centers. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Baylis see patients?
- Medicare's clinician data lists 1 practice location in Palos Heights, IL. Call before your visit to confirm the address.
- What is William J. Baylis's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty, and also Hand Surgery.
- Does William J. Baylis accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Baylis 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 J. Baylis?
- (708) 361-0880, as listed in official Medicare / NPI Registry data.
- What is William J. Baylis's NPI number?
- 1639177603. 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 J. Baylis works
Medicare's Facility Affiliation Data lists William J. Baylis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · CCN 140213
Practice locations
Addresses where William J. Baylis is enrolled with Medicare (CMS data updated 2026-10-02).
- 7600 W College DrPalos Heights, IL 60463 (708) 361‑0880
Group practices
Medicare enrollment lists William J. Baylis as a member of this group (CMS data updated 2026-10-02).
- Parkview Orthopaedic Group S C29 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
- Hand Surgeryalso
Other orthopedic surgeons in Palos Heights
Clinicians with the same Medicare primary specialty in Palos Heights, IL — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639177603 |
| 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