Quick answers
- Which hospitals does Ryan Sullivan work at?
- Medicare's official clinician data lists Ryan Sullivan at 2 hospitals: Advocate Good Samaritan Hospital and DCH Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan Sullivan see patients?
- Medicare's clinician data lists 2 practice locations, including Buffalo Grove, IL and Downers Grove, IL. Call before your visit to confirm the address.
- What is Ryan Sullivan's specialty?
- Medicare lists Undefined Physician Type (Specify) as the primary specialty.
- Does Ryan Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan 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 Ryan Sullivan?
- (847) 459-1160, as listed in official Medicare / NPI Registry data.
- What is Ryan Sullivan's NPI number?
- 1376562694. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan Sullivan works
Medicare's Facility Affiliation Data lists Ryan Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- DCH Regional Medical CenterTuscaloosa, AL · Acute Care Hospital · CCN 010092
Practice locations
Addresses where Ryan Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 3815 Highland AveDowners Grove, IL 60515
Group practices
Medicare enrollment lists Ryan Sullivan as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
Find other Undefined Physician Type (Specify) doctors in Illinois →
Other physicians in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376562694 |
| 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