Quick answers
- Which hospitals does William Mosenthal work at?
- Medicare's official clinician data lists William Mosenthal at 5 hospitals: Franciscan Health Olympia & Chicago Heights, Iroquois Memorial Hospital, Presence St Marys Hospital, Riverside 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 Mosenthal see patients?
- Medicare's clinician data lists 7 practice locations, including New Lenox, IL, Frankfort, IL and Bannockburn, IL. Call before your visit to confirm the address.
- What is William Mosenthal's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does William Mosenthal accept Medicare assignment?
- Yes. Medicare's clinician data says William Mosenthal 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 Mosenthal?
- (815) 462-3474, as listed in official Medicare / NPI Registry data.
- What is William Mosenthal's NPI number?
- 1023499480. 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 Mosenthal works
Medicare's Facility Affiliation Data lists William Mosenthal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · CCN 140172
- Iroquois Memorial HospitalWatseka, IL · Critical Access Hospital · CCN 141353
- Presence St Marys HospitalKankakee, IL · Acute Care Hospital · CCN 140155
- Riverside Medical CenterKankakee, IL · Acute Care Hospital · CCN 140186
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · CCN 140213
Practice locations
Addresses where William Mosenthal is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1870 Silver Cross BlvdNew Lenox, IL 60451 (815) 462‑3474
- 1900 Silver Cross BlvdNew Lenox, IL 60451 (815) 300‑7097
- 19552 S Harlem AveFrankfort, IL 60423 (815) 469‑3453
- 2101 Waukegan RdBannockburn, IL 60015
- 500 W Court StKankakee, IL 60901 (815) 937‑2400
Group practices
Medicare enrollment lists William Mosenthal as a member of this group (CMS data updated 2026-10-02).
- Illinois Bone and Joint Institute, LLC604 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in New Lenox
Clinicians with the same Medicare primary specialty in New Lenox, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023499480 |
| 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