Quick answers
- Does Stella C. Onyi accept Medicare assignment?
- Yes. Medicare's clinician data says Stella C. Onyi 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 Stella C. Onyi see?
- In 2024, CMS data shows 3,743 Original Medicare patients and 5,504 services for Stella C. Onyi. This counts Original Medicare only and measures volume, not quality.
- What is Stella C. Onyi's NPI number?
- 1881057750. 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 Stella C. Onyi, 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 | 3,743 |
|---|---|
| Services billed to Medicare | 5,504 |
| Different services or procedures | 157 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- X-ray of chest, 1 view (71045)1,537 services
- Ct scan head or brain without contrast (70450)410 services
- Ct scan of abdomen and pelvis without contrast (74176)354 services
- Ct scan of abdomen and pelvis with contrast (74177)195 services
- X-ray of chest, 2 views (71046)164 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 pressure75%
- High cholesterol74%
- Arthritis50%
- Diabetes44%
- Heart failure40%
- Ischemic heart disease37%
Hospitals where Stella C. Onyi works
Medicare's Facility Affiliation Data lists Stella C. Onyi 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.
- Desert Valley HospitalVictorville, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050709
- Hemet Global Medical CenterHemet, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050390
- Menifee Global Medical CenterSun City, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050684
- Oak Valley Hospital DistrictOakdale, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050067
- Shasta Regional Medical CenterRedding, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050764
Practice locations
Addresses where Stella C. Onyi is enrolled with Medicare (CMS data updated October 2, 2026).
- 1117 E Devonshire AveHemet, CA 92543 (951) 652‑2811
- 12490 Business Ctr Dr, Suite 2Victorville, CA 92395 (760) 728‑1900
- 12490 Business Ctr Dr, Suite 200Victorville, CA 92395 (760) 728‑1900
- 16850 Bear Valley RdVictorville, CA 92395 (760) 241‑8000
- 34402 Waltham PlWinchester, CA 92596 (760) 699‑2900
Group practices
Medicare enrollment lists Stella C. Onyi as a member of these groups (CMS data updated October 2, 2026).
- Seven Star Hospital Associates Inc126 clinicians in the group
- Sol Radiology Inc50 clinicians in the group
- Krishna Das MD Inc18 clinicians in the group
- Rahul Nayyar MD Inc10 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Hemet
Clinicians with the same Medicare primary specialty in Hemet, CA — not a recommendation.
Other clinicians in Seven Star Hospital Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881057750 |
| 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