Quick answers
- Which hospitals does Carl M. Williams work at?
- Medicare's official clinician data lists Carl M. Williams at 4 hospitals: Ascension St Vincent Evansville, Marshfield Medical Center - Minocqua, Marshfield Medical Center - Weston and Parkview Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Carl M. Williams see patients?
- Medicare's clinician data lists 6 practice locations, including Janesville, WI, Marshfield, WI and Fort Wayne, IN. Call before your visit to confirm the address.
- What is Carl M. Williams's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Pulmonary Disease.
- Does Carl M. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Carl M. Williams 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 Carl M. Williams?
- (608) 756-6000, as listed in official Medicare / NPI Registry data.
- What is Carl M. Williams's NPI number?
- 1003971490. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Carl M. Williams works
Medicare's Facility Affiliation Data lists Carl M. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St Vincent EvansvilleEvansville, IN · Acute Care Hospital · CCN 150100
- Marshfield Medical Center - MinocquaMinocqua, WI · Acute Care Hospital · CCN 520212
- Marshfield Medical Center - WestonWeston, WI · Acute Care Hospital · CCN 520202
- Parkview Regional Medical CenterFort Wayne, IN · Acute Care Hospital · CCN 150021
Practice locations
Addresses where Carl M. Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1000 Mineral Point AveJanesville, WI 53548 (608) 756‑6000
- 1000 N Oak AveMarshfield, WI 54449 (715) 387‑5511
- 11104 Parkview Plaza Dr, 410 Ppg Pulmonary and Critical CareFort Wayne, IN 46845 (260) 266‑7856
- 11109 Parkview Plaza DrFort Wayne, IN 46845 (260) 266‑2020
- 3400 Ministry PkwyWeston, WI 54476 (715) 393‑1000
Group practices
Medicare enrollment lists Carl M. Williams as a member of these groups (CMS data updated 2026-10-02).
- Parkview Health System Inc1,377 clinicians in the group
- MCHS Hospitals Inc1,197 clinicians in the group
- Mercy Health System Corporation753 clinicians in the group
- Cep America - Intensivists PC125 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Wisconsin →
Other critical care doctors in Janesville
Clinicians with the same Medicare primary specialty in Janesville, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003971490 |
| 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