Quick answers
- Which hospitals does Matthew C. Grzegozewski work at?
- Medicare's official clinician data lists Matthew C. Grzegozewski at 1 hospital: The Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew C. Grzegozewski see patients?
- Medicare's clinician data lists 1 practice location in Craig, CO. Call before your visit to confirm the address.
- What is Matthew C. Grzegozewski's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Matthew C. Grzegozewski accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew C. Grzegozewski 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 Matthew C. Grzegozewski?
- (970) 824-9411, as listed in official Medicare / NPI Registry data.
- What is Matthew C. Grzegozewski's NPI number?
- 1417163536. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew C. Grzegozewski works
Medicare's Facility Affiliation Data lists Matthew C. Grzegozewski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- The Memorial HospitalCraig, CO · Critical Access Hospital · CCN 061314
Practice locations
Addresses where Matthew C. Grzegozewski is enrolled with Medicare (CMS data updated 2026-10-02).
- 750 Hospital LoopCraig, CO 81625 (970) 824‑9411
Group practices
Medicare enrollment lists Matthew C. Grzegozewski as a member of this group (CMS data updated 2026-10-02).
- The Memorial Hospital46 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Colorado
Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Eastern Virginia Medical School |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417163536 |
| 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