Quick answers
- Does Ian L. Greybull accept Medicare assignment?
- Yes. Medicare's clinician data says Ian L. Greybull 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.
- How many Medicare patients does Ian L. Greybull see?
- In 2024, CMS data shows 72 Original Medicare patients and 285 services for Ian L. Greybull. This counts Original Medicare only and measures volume, not quality.
- What is Ian L. Greybull's NPI number?
- 1801105531. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Ian L. Greybull, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 72 |
|---|---|
| Services billed to Medicare | 285 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)68 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)59 services
- Telephone medical discussion with physician, 21-30 minutes (99443)22 services
- Insertion of needle into vein for collection of blood sample (36415)20 services
- Blood test, comprehensive group of blood chemicals (80053)20 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure68%
- Diabetes64%
- Arthritis43%
- High cholesterol29%
- Chronic kidney disease17%
- Heart failure17%
Hospitals where Ian L. Greybull works
Medicare's Facility Affiliation Data lists Ian L. Greybull 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.
- Northeastern Nevada Regional HospitalElko, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290008
- Saint Alphonsus Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130007
- St Luke's Elmore Medical CenterMountain Home, ID · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 131311
Practice locations
Addresses where Ian L. Greybull is enrolled with Medicare (CMS data updated October 2, 2026).
- 1623 Hospital LoopOwyhee, NV 89832 (775) 757‑2415
Group practices
Medicare enrollment lists Ian L. Greybull as a member of this group (CMS data updated October 2, 2026).
- Shoshone-Paiute Tribes10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Owyhee
Clinicians with the same Medicare primary specialty in Owyhee, NV — not a recommendation.
Other clinicians in Shoshone-Paiute Tribes
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2010 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801105531 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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