Quick answers
- Which hospitals does William F. Sullivan work at?
- Medicare's official clinician data lists William F. Sullivan at 4 hospitals: Baldwin Health, Mobile Infirmary Medical Center, North Baldwin Infirmary and Thomas Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William F. Sullivan see patients?
- Medicare's clinician data lists 1 practice location in Mobile, AL. Call before your visit to confirm the address.
- What is William F. Sullivan's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does William F. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says William F. Sullivan 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 F. Sullivan?
- (251) 435-1200, as listed in official Medicare / NPI Registry data.
- What is William F. Sullivan's NPI number?
- 1144311663. 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 F. Sullivan works
Medicare's Facility Affiliation Data lists William F. Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baldwin HealthFoley, AL · Acute Care Hospital · CCN 010083
- Mobile Infirmary Medical CenterMobile, AL · Acute Care Hospital · CCN 010113
- North Baldwin InfirmaryBay Minette, AL · Acute Care Hospital · CCN 010129
- Thomas HospitalFairhope, AL · Acute Care Hospital · CCN 010100
Practice locations
Addresses where William F. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 3 Mobile Infirmary Cir, Suite 201aMobile, AL 36607 (251) 435‑1200
Group practices
Medicare enrollment lists William F. Sullivan as a member of this group (CMS data updated 2026-10-02).
- Imc-Diagnostic and Medical Clinic LLC164 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Mobile
Clinicians with the same Medicare primary specialty in Mobile, AL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Alabama College Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144311663 |
| 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