Oyoyo O. Onuoha, MD

Medicare activity in 2024

Official CMS public-use data for Oyoyo O. Onuoha, 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.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)367 services
2. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)331 services
3. Annual alcohol misuse screening, 5 to 15 minutes (G0442)139 services
4. Annual depression screening, 5 to 15 minutes (G0444)131 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)127 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%
• Arthritis62%
• Chronic kidney disease34%
• Ischemic heart disease28%
• Anxiety28%

Hospitals where Oyoyo O. Onuoha works

Medicare's Facility Affiliation Data lists Oyoyo O. Onuoha 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.

• Banner Baywood Medical CenterMesa, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030088

Practice locations

Addresses where Oyoyo O. Onuoha is enrolled with Medicare (CMS data updated October 2, 2026).

• 2919 S Ellsworth Rd, Suite 139Mesa, AZ 85212 (480) 984‑5225

Group practices

Medicare enrollment lists Oyoyo O. Onuoha as a member of this group (CMS data updated October 2, 2026).

• Chikwendu C Nwosu MD LLC10 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Mesa

Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.

• Justin S. Welsh, DO
• Ryan Farhat, MD
• Mansoor A. Jatoi, DO
• Bassil Bayazed, MD
• Hassan Abbas, DO
• Hillary B. Derose-Caldera, MD
• Chelsea J. Carlson, DO
• Michael A. Klein, MD

All internal medicine doctors in Mesa →

Other clinicians in Chikwendu C Nwosu MD LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Chikwendu C. Nwosu, MD
• Jessica Glentz, NP
• Jayna L. Raub, NP
• Nancy Concio, NP
• Rhonda Creegan, NP
• Gabriela Lien

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians