Quick answers
- Does Casey F. Onik accept Medicare assignment?
- Yes. Medicare's clinician data says Casey F. Onik accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Casey F. Onik's NPI number?
- 1881922748. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Casey F. Onik works
Medicare's Facility Affiliation Data lists Casey F. Onik at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- CHRISTUS St Vincent Regional Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 320002
- Plains Regional Medical CenterClovis, NM · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 320022
Practice locations
Addresses where Casey F. Onik is enrolled with Medicare (CMS data updated October 2, 2026).
- 1016 E Rooselvelt AveGrants, NM 87020 (505) 287‑4446
- 2100 M L K Jr Blvd, Plains Regional Med CtrClovis, NM 88101 (575) 546‑5800
Group practices
Medicare enrollment lists Casey F. Onik as a member of this group (CMS data updated October 2, 2026).
- Fedko Emergency Physicians New Mexico, LLC54 clinicians in the group
Specialties
Other family doctors in Grants
Clinicians with the same Medicare primary specialty in Grants, NM — not a recommendation.
Other clinicians in Fedko Emergency Physicians New Mexico, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881922748 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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