Quick answers
- Which hospitals does Stuart L. Warnaar work at?
- Medicare's official clinician data lists Stuart L. Warnaar at 5 hospitals: Kalkaska Memorial Health Center, 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 Stuart L. Warnaar see patients?
- Medicare's clinician data lists 1 practice location in Traverse City, MI. Call before your visit to confirm the address.
- What is Stuart L. Warnaar's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Stuart L. Warnaar accept Medicare assignment?
- Yes. Medicare's clinician data says Stuart L. Warnaar 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 Stuart L. Warnaar?
- (231) 935-0600, as listed in official Medicare / NPI Registry data.
- What is Stuart L. Warnaar's NPI number?
- 1245235472. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stuart L. Warnaar works
Medicare's Facility Affiliation Data lists Stuart L. Warnaar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kalkaska Memorial Health CenterKalkaska, MI · Critical Access Hospital · CCN 231301
- 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 Stuart L. Warnaar is enrolled with Medicare (CMS data updated 2026-10-02).
- 5041 N Royal DrTraverse City, MI 49684 (231) 935‑0600
Group practices
Medicare enrollment lists Stuart L. Warnaar as a member of this group (CMS data updated 2026-10-02).
- Munson Medical Group194 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Traverse City
Clinicians with the same Medicare primary specialty in Traverse City, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245235472 |
| 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