Quick answers
- Which hospitals does John M. Sullivan Iii work at?
- Medicare's official clinician data lists John M. Sullivan Iii at 1 hospital: Merit Health Wesley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Sullivan Iii see patients?
- Medicare's clinician data lists 2 practice locations, including Hattiesburg, MS. Call before your visit to confirm the address.
- What is John M. Sullivan Iii's specialty?
- Medicare lists Plastic and Reconstructive Surgery as the primary specialty.
- Does John M. Sullivan Iii accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Sullivan Iii 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 John M. Sullivan Iii?
- (601) 296-3405, as listed in official Medicare / NPI Registry data.
- What is John M. Sullivan Iii's NPI number?
- 1043872948. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John M. Sullivan Iii works
Medicare's Facility Affiliation Data lists John M. Sullivan Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Merit Health WesleyHattiesburg, MS · Acute Care Hospital · CCN 250094
Practice locations
Addresses where John M. Sullivan Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 40 Franklin RdHattiesburg, MS 39402 (601) 296‑3405
- 5001 Hardy StHattiesburg, MS 39402 (601) 268‑8155
Group practices
Medicare enrollment lists John M. Sullivan Iii as a member of these groups (CMS data updated 2026-10-02).
- Wesley Physician Services LLC42 clinicians in the group
- Plastic Surgery Center of Hattiesburg, PLLC3 clinicians in the group
Specialties
Find other Plastic and Reconstructive Surgery doctors in Mississippi →
Other plastic surgeons in Hattiesburg
Clinicians with the same Medicare primary specialty in Hattiesburg, MS — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Mississippi School Of Medicine |
| Graduation year | 2025 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043872948 |
| 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