Quick answers
- Which hospitals does William D. Sullivan work at?
- Medicare's official clinician data lists William D. Sullivan at 5 hospitals: Covington County Hospital CAH, Forrest General Hospital, Magee General Hospital, Simpson General Hospital CAH and South Central Reg Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William D. Sullivan see patients?
- Medicare's clinician data lists 9 practice locations, including Laurel, MS, Suite 400 S, MS and Ellisville, MS. Call before your visit to confirm the address.
- What is William D. Sullivan's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does William D. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says William D. 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 D. Sullivan?
- (601) 649-7802, as listed in official Medicare / NPI Registry data.
- What is William D. Sullivan's NPI number?
- 1659385276. 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 D. Sullivan works
Medicare's Facility Affiliation Data lists William D. Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Covington County Hospital CAHCollins, MS · Critical Access Hospital · CCN 251325
- Forrest General HospitalHattiesburg, MS · Acute Care Hospital · CCN 250078
- Magee General HospitalMagee, MS · Acute Care Hospital · CCN 250124
- Simpson General Hospital CAHMendenhall, MS · Critical Access Hospital · CCN 251317
- South Central Reg Med CtrLaurel, MS · Acute Care Hospital · CCN 250058
Practice locations
Addresses where William D. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 1002 Jefferson StLaurel, MS 39440
- 1002 Jefferson St, Suite 400 South Central Pain CenterSuite 400 S, MS 39440 (601) 649‑7802
- 1203 Ave BEllisville, MS 39437
- 1203 Jefferson StLaurel, MS 39440 (601) 649‑2863
- 1220 Jefferson StLaurel, MS 39440 (601) 426‑4000
Group practices
Medicare enrollment lists William D. Sullivan as a member of these groups (CMS data updated 2026-10-02).
- South Central Clinics, Inc115 clinicians in the group
- South Central Regional Medical Center14 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Mississippi →
Other cardiologists in Laurel
Clinicians with the same Medicare primary specialty in Laurel, MS — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659385276 |
| 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