Quick answers
- Which hospitals does Tate Gregaitis work at?
- Medicare's official clinician data lists Tate Gregaitis at 1 hospital: Spectrum Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tate Gregaitis see patients?
- Medicare's clinician data lists 2 practice locations, including Grand Rapids, MI and Holland, MI. Call before your visit to confirm the address.
- What is Tate Gregaitis's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Tate Gregaitis accept Medicare assignment?
- Yes. Medicare's clinician data says Tate Gregaitis 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 Tate Gregaitis?
- (616) 391-1774, as listed in official Medicare / NPI Registry data.
- What is Tate Gregaitis's NPI number?
- 1881971216. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tate Gregaitis works
Medicare's Facility Affiliation Data lists Tate Gregaitis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
Practice locations
Addresses where Tate Gregaitis is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Michigan Ave NEGrand Rapids, MI 49503 (616) 391‑1774
- 12460 Riley StHolland, MI 49424 (616) 399‑6500
Group practices
Medicare enrollment lists Tate Gregaitis as a member of these groups (CMS data updated 2026-10-02).
- Spectrum Health Hospitals160 clinicians in the group
- Cancer and Hematology Centers of Western Mi, P.C.110 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881971216 |
| 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