Summary

Dr. Ogonna Onyeje treats hypertensive emergency and hypertension, and performs home infusion therapy. He practices internal medicine and hospital medicine and has 27 years of experience. Dr. Onyeje is affiliated with Kaiser Permanente Manteca Medical Center, Saint Agnes Medical Center, Mercy Medical Center, Kaiser Permanente Fresno Medical Center, and Kaiser Permanente Modesto Medical Center. He completed his residency at Mount Sinai School of Medicine and sees patients in Fresno and Manteca, California. Patients on Vitals rate Dr. Onyeje 4 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4
  • 27 years of experience
  • Mount Sinai School Of Medicine
  • 2 written reviews
  • 2 specialties
  • 5 areas of expertise
  • 5 hospital affiliations
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Ogonna Ignatius Onyeje has 5 locations

Ezenwugo Medical Group And Urgent Care

6769 N Fresno St Ste 201Fresno, CA 93710
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Saint Agnes Medical Center

1303 E Herndon AveFresno, CA 93720

Mercy Medical Center

333 Mercy AveMerced, CA 95340

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Dr. Ogonna Ignatius Onyeje, MDDr. Adama Diarra, DODr. Adewumi Bakare DMSc, PA-CKarthikeyan Viswanathan, DO
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4 
5 
0 
0 
27 Years of Experience 14 Years of Experience 12 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, French, Bambara Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) Speaks English, Tamil
Fresno , CATigard , ORMesquite , TXPalo Alto , CA
Med School: University Of Nigeria Med School: Arizona College of Osteopathic Medicine Med School: University of Lynchburg - DMSc Med School: Bassett Medical Center - Cooperstown, New York
Current Profile
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Insurance Plans Accepted by Dr. Ogonna Ignatius Onyeje

  • Accepts Medicaid

Medical Specialties

Dr. Ogonna Ignatius Onyeje has the following 2 specialties

Specialty Expertise

Dr. Ogonna Ignatius Onyeje has the following 5 areas of expertise

  • Chest Pain
  • Gastrointestinal Bleeding
  • Hospital Medicine
  • Meningitis
  • Pneumonia

Certifications, License, & Education

27 Years Experience

Dr. Ogonna Ignatius Onyeje holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2026.

Education & Training

Residency

Completed their residency at Mount Sinai School Of Medicine.

Medical School

Graduated from University Of Nigeria in 2005 and University Of Nigeria Faculty Of Medicine in 1999.

NPI Number

Dr. Onyeje's NPI number is 1508944000.

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Frequently Asked Questions

Which hospitals is Dr. Ogonna Onyeje affiliated with?
Dr. Ogonna Onyeje is affiliated with Kaiser Permanente Manteca Medical Center, Saint Agnes Medical Center, Mercy Medical Center, Kaiser Permanente Fresno Medical Center, and Kaiser Permanente Modesto Medical Center.
How can I make an appointment with Dr. Ogonna Onyeje?
You can find contact information for Dr. Ogonna Onyeje here on Vitals.
Does Dr. Ogonna Onyeje accept my insurance?
You can see the insurance plans that Dr. Ogonna Onyeje accepts on their Vitals profile.
Is Dr. Ogonna Onyeje accepting new patients?
Dr. Ogonna Onyeje is accepting new patients on Vitals. View Dr. Ogonna Onyeje's profile on Vitals to make an appointment.
Does Dr. Ogonna Onyeje accept virtual/telehealth appointments?
Dr. Ogonna Onyeje has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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