Quick answers
- Which hospitals does Jack Kooienga work at?
- Medicare's official clinician data lists Jack Kooienga at 3 hospitals: AdventHealth Lake Wales, HCA Florida Lake City Hospital and Munson Healthcare Cadillac Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack Kooienga see patients?
- Medicare's clinician data lists 5 practice locations, including Grayling, MI, Tallahassee, FL and Cadillac, MI. Call before your visit to confirm the address.
- What is Jack Kooienga's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Jack Kooienga accept Medicare assignment?
- Yes. Medicare's clinician data says Jack Kooienga 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 Jack Kooienga?
- (989) 348-5461, as listed in official Medicare / NPI Registry data.
- What is Jack Kooienga's NPI number?
- 1518216308. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack Kooienga works
Medicare's Facility Affiliation Data lists Jack Kooienga at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth Lake WalesLake Wales, FL · Acute Care Hospital · CCN 100099
- HCA Florida Lake City HospitalLake City, FL · Acute Care Hospital · CCN 100156
- Munson Healthcare Cadillac HospitalCadillac, MI · Acute Care Hospital · CCN 230081
Practice locations
Addresses where Jack Kooienga is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 E Michgan AveGrayling, MI 49738 (989) 348‑5461
- 2626 Capital Medical BlvdTallahassee, FL 32308 (561) 997‑0831
- 400 Hobart StCadillac, MI 49601 (231) 876‑7200
- 601 E Rollins StOrlando, FL 32803 (407) 303‑2570
- 825 N Ctr AveGaylord, MI 49735 (989) 731‑2100
Group practices
Medicare enrollment lists Jack Kooienga as a member of these groups (CMS data updated 2026-10-02).
- Florida Hospital Medical Group Inc1,755 clinicians in the group
- Intensive Care Consortium Inc496 clinicians in the group
- North Michigan Physician Services PC67 clinicians in the group
- Wexford Physician Services PC41 clinicians in the group
- Otsego Physician Services PC32 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grayling
Clinicians with the same Medicare primary specialty in Grayling, MI — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518216308 |
| 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