Quick answers
- Which hospitals does John Sullivan work at?
- Medicare's official clinician data lists John Sullivan at 2 hospitals: Kent County Memorial Hospital and Women & Infants Hospital of Rhode Island. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Sullivan see patients?
- Medicare's clinician data lists 1 practice location in Warwick, RI. Call before your visit to confirm the address.
- What is John Sullivan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says John 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 John Sullivan?
- (401) 737-7010, as listed in official Medicare / NPI Registry data.
- What is John Sullivan's NPI number?
- 1700299625. 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 Sullivan works
Medicare's Facility Affiliation Data lists John Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kent County Memorial HospitalWarwick, RI · Acute Care Hospital · CCN 410009
- Women & Infants Hospital of Rhode IslandProvidence, RI · Acute Care Hospital · CCN 410010
Practice locations
Addresses where John Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 455 Toll Gate RdWarwick, RI 02886 (401) 737‑7010
Group practices
Medicare enrollment lists John Sullivan as a member of this group (CMS data updated 2026-10-02).
- Affinity Physicians LLC.730 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Warwick
Clinicians with the same Medicare primary specialty in Warwick, RI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700299625 |
| 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