Quick answers
- Which hospitals does Michael J. Sullivan work at?
- Medicare's official clinician data lists Michael J. Sullivan at 1 hospital: Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael J. Sullivan see patients?
- Medicare's clinician data lists 3 practice locations, including Alton, IL and Belleville, IL. Call before your visit to confirm the address.
- What is Michael J. Sullivan's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Michael J. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. 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 Michael J. Sullivan?
- (618) 463-7240, as listed in official Medicare / NPI Registry data.
- What is Michael J. Sullivan's NPI number?
- 1881097236. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael J. Sullivan works
Medicare's Facility Affiliation Data lists Michael J. Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial HospitalBelleville, IL · Acute Care Hospital · CCN 140185
Practice locations
Addresses where Michael J. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Memorial DrAlton, IL 62002 (618) 463‑7240
- 4500 Memorial DrBelleville, IL 62226 (618) 257‑6220
- 4700 Memorial DrBelleville, IL 62226
Group practices
Medicare enrollment lists Michael J. Sullivan as a member of this group (CMS data updated 2026-10-02).
- Fairview Heights Medical Group SC444 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Alton
Clinicians with the same Medicare primary specialty in Alton, IL — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881097236 |
| 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