Quick answers
- Which hospitals does William R. Gray work at?
- Medicare's official clinician data lists William R. Gray at 5 hospitals: Deaconess Hospital Inc, Deaconess Illinois Union County, Franklin Hospital, Heartland Regional Medical Center and SSM Health Saint Louis University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William R. Gray see patients?
- Medicare's clinician data lists 1 practice location in Marion, IL. Call before your visit to confirm the address.
- What is William R. Gray's specialty?
- Medicare lists Hospitalist as the primary specialty.
- Does William R. Gray accept Medicare assignment?
- Yes. Medicare's clinician data says William R. Gray 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 R. Gray?
- (618) 998-7000, as listed in official Medicare / NPI Registry data.
- What is William R. Gray's NPI number?
- 1114378882. 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 R. Gray works
Medicare's Facility Affiliation Data lists William R. Gray at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Deaconess Hospital IncEvansville, IN · Acute Care Hospital · CCN 150082
- Deaconess Illinois Union CountyAnna, IL · Critical Access Hospital · CCN 141342
- Franklin HospitalBenton, IL · Critical Access Hospital · CCN 141321
- Heartland Regional Medical CenterMarion, IL · Acute Care Hospital · CCN 140184
- SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · CCN 260105
Practice locations
Addresses where William R. Gray is enrolled with Medicare (CMS data updated 2026-10-02).
- 3333 W Deyoung StMarion, IL 62959 (618) 998‑7000
Group practices
Medicare enrollment lists William R. Gray as a member of this group (CMS data updated 2026-10-02).
- Deaconess Illinois Specialty Clinic, Inc.148 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Marion
Clinicians with the same Medicare primary specialty in Marion, IL — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114378882 |
| 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