Quick answers
- Which hospitals does William Pierce work at?
- Medicare's official clinician data lists William Pierce at 3 hospitals: Methodist Hospitals Inc, Pinnacle Hospital and St Mary Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Pierce see patients?
- Medicare's clinician data lists 3 practice locations, including Merrillville, IN and Crown Point, IN. Call before your visit to confirm the address.
- What is William Pierce's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does William Pierce accept Medicare assignment?
- Yes. Medicare's clinician data says William Pierce 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 Pierce?
- (219) 738-2008, as listed in official Medicare / NPI Registry data.
- What is William Pierce's NPI number?
- 1497838593. 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 Pierce works
Medicare's Facility Affiliation Data lists William Pierce at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist Hospitals IncGary, IN · Acute Care Hospital · CCN 150002
- Pinnacle HospitalCrown Point, IN · Acute Care Hospital · CCN 150166
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · CCN 150034
Practice locations
Addresses where William Pierce is enrolled with Medicare (CMS data updated 2026-10-02).
- 210 E 90th DrMerrillville, IN 46410 (219) 738‑2008
- 9301 Connecticut DrCrown Point, IN 46307 (219) 796‑4060
- 9301 Connecticut DrMerrillville, IN 46410
Group practices
Medicare enrollment lists William Pierce as a member of this group (CMS data updated 2026-10-02).
- Pinnacle Healthcare LLC9 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Merrillville
Clinicians with the same Medicare primary specialty in Merrillville, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1970 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497838593 |
| 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