Quick answers
- Which hospitals does Ryan A. Sullivan work at?
- Medicare's official clinician data lists Ryan A. Sullivan at 5 hospitals: Corewell Health Ludington Hospital, Munson Healthcare Cadillac Hospital, Munson Healthcare Manistee Hospital, Munson Medical Center and Paul Oliver Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan A. Sullivan see patients?
- Medicare's clinician data lists 2 practice locations, including Manistee, MI and Bear Lake, MI. Call before your visit to confirm the address.
- What is Ryan A. Sullivan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ryan A. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan A. 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.
- Does Ryan A. Sullivan offer telehealth?
- Medicare's clinician data says Ryan A. Sullivan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ryan A. Sullivan?
- (231) 723-3567, as listed in official Medicare / NPI Registry data.
- What is Ryan A. Sullivan's NPI number?
- 1174605653. 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 A. Sullivan works
Medicare's Facility Affiliation Data lists Ryan A. Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Ludington HospitalLudington, MI · Acute Care Hospital · CCN 230110
- Munson Healthcare Cadillac HospitalCadillac, MI · Acute Care Hospital · CCN 230081
- Munson Healthcare Manistee HospitalManistee, MI · Acute Care Hospital · CCN 230303
- Munson Medical CenterTraverse City, MI · Acute Care Hospital · CCN 230097
- Paul Oliver Memorial HospitalFrankfort, MI · Critical Access Hospital · CCN 231300
Practice locations
Addresses where Ryan A. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2198 US Hwy 31 SManistee, MI 49660 (231) 723‑3567
- 8225 Lake StBear Lake, MI 49614 (231) 864‑3314
Group practices
Medicare enrollment lists Ryan A. Sullivan as a member of this group (CMS data updated 2026-10-02).
- Crystal Lake Clinic PC15 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Manistee
Clinicians with the same Medicare primary specialty in Manistee, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1174605653 |
| 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