Quick answers
- Which hospitals does Katherine R. Van Oss work at?
- Medicare's official clinician data lists Katherine R. Van Oss at 5 hospitals: Corewell Health Big Rapids Hospital, Corewell Health Gerber Hospital, Corewell Health Pennock Hospital, Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine R. Van Oss see patients?
- Medicare's clinician data lists 4 practice locations, including Grand Rapids, MI and Kentwood, MI. Call before your visit to confirm the address.
- What is Katherine R. Van Oss's specialty?
- Medicare lists Preventive Medicine as the primary specialty.
- Does Katherine R. Van Oss accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine R. Van Oss 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 Katherine R. Van Oss offer telehealth?
- Medicare's clinician data says Katherine R. Van Oss offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Katherine R. Van Oss?
- (616) 391-5600, as listed in official Medicare / NPI Registry data.
- What is Katherine R. Van Oss's NPI number?
- 1801020474. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine R. Van Oss works
Medicare's Facility Affiliation Data lists Katherine R. Van Oss at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Big Rapids HospitalBig Rapids, MI · Acute Care Hospital · CCN 230093
- Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · CCN 231338
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Katherine R. Van Oss is enrolled with Medicare (CMS data updated 2026-10-02).
- 4069 Lake Dr SEGrand Rapids, MI 49546
- 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group WestKentwood, MI 49508 (616) 391‑5600
- 5060 Cascade Rd, Suite AGrand Rapids, MI 49546
- 5060 Cascade Rd SE, Suite AGrand Rapids, MI 49546
Group practices
Medicare enrollment lists Katherine R. Van Oss as a member of these groups (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
- Center for Physical Rehabilitation and Therapy LP369 clinicians in the group
- Center for Physical Rehabilitation Inc357 clinicians in the group
Specialties
- Preventive Medicineprimary
Other preventive medicine doctors in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1801020474 |
| 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