Quick answers
- Does Ikechukwu C. Onyeka accept Medicare assignment?
- Yes. Medicare's clinician data says Ikechukwu C. Onyeka 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 Ikechukwu C. Onyeka see?
- In 2024, CMS data shows 1,063 Original Medicare patients and 5,904 services for Ikechukwu C. Onyeka. This counts Original Medicare only and measures volume, not quality.
- What is Ikechukwu C. Onyeka's NPI number?
- 1659435204. 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 Ikechukwu C. Onyeka, 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 | 1,063 |
|---|---|
| Services billed to Medicare | 5,904 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)2,843 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)965 services
- Hospital discharge day management, more than 30 minutes (99239)557 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)480 services
- Critical care, first 30-74 minutes (99291)457 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 cholesterol75%
- Arthritis52%
- Ischemic heart disease44%
- Chronic kidney disease44%
- Heart failure44%
Hospitals where Ikechukwu C. Onyeka works
Medicare's Facility Affiliation Data lists Ikechukwu C. Onyeka 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.
- Altru HospitalGrand Forks, ND · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 350019
- Mercy HospitalCoon Rapids, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240115
- North Valley Health CenterWarren, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241337
- Riverview HospitalCrookston, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241320
- Sanford Medical Center FargoFargo, ND · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 350011
Practice locations
Addresses where Ikechukwu C. Onyeka is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1200 S Columbia RdGrand Forks, ND 58201 (701) 780‑5000
- 1300 S Columbia RdGrand Forks, ND 58201 (701) 780‑5000
- 1380 S Columbia RdGrand Forks, ND 58201 (701) 795‑2000
- 2925 Chicago AveMinneapolis, MN 55407
- 4050 Coon Rapids Blvd NWCoon Rapids, MN 55433
Group practices
Medicare enrollment lists Ikechukwu C. Onyeka as a member of these groups (CMS data updated October 2, 2026).
- Allina Health System3,842 clinicians in the group
- Altru Health System684 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Grand Forks
Clinicians with the same Medicare primary specialty in Grand Forks, ND — not a recommendation.
Other clinicians in Allina Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659435204 |
| 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