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Dr. John N. Onyema, MD

Internal Medicine

  • (702) 383-3626

Dr. Onyema's Overview

Dr. John N. Onyema graduated from the Univ of Nigeria, Fac of Med, Enugu State, Nigeria in 1981. He works in Las Vegas, NV and specializes in Internal Medicine. Dr. Onyema is affiliated with University Medical Center Of Southern Nevada.

Dr. Onyema's Experience

Years in Practice: 34

Dr. Onyema's Specialties

Internal Medicine

Dr. Onyema's Education & Training

Medical School: Univ of Nigeria, Fac of Med, Enugu State, Nigeria; Graduated 1981

Dr. Onyema's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Onyema's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Anthem Pathway X HMO/Ind Direct Access NV
  • Anthem PPO
  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
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Dr. Onyema's Office Information & Appointments

Office Locations

Spring Valley Quick Care

4180 S Rainbow Blvd Ste 810
Las Vegas, NV 89103
(702) 383-3626


Office Hours and Information

Fax: (702) 227-8487

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 7:30 AM - 4:00 PM
Tuesday 7:30 AM - 4:00 PM
Wednesday 7:30 AM - 4:00 PM
Thursday 7:30 AM - 4:00 PM
Friday 7:30 AM - 4:00 PM
Saturday Closed
Sunday Closed

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Dr. Onyema's Hospital Affiliations

Office Locations

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