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Dr. Johnson O. Adeyanju, MD

Internal Medicine

  • (925) 677-0500

Dr. Adeyanju's Overview

Dr. Johnson O. Adeyanju graduated from the Louisiana State University School of Medicine at New Orleans in 1989. He works in Concord, CA and specializes in Internal Medicine. Dr. Adeyanju is affiliated with John Muir Medical Center Concord.

Dr. Adeyanju's Experience

Years in Practice: 26

Procedures Performed by Dr. Adeyanju

Dr. Adeyanju's Specialties

Internal Medicine

Dr. Adeyanju's Education & Training

Medical School: Louisiana State University School of Medicine at New Orleans; Graduated 1989

Dr. Adeyanju'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. Adeyanju's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna HMO Deductible Plan CA members only
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • Blue Cross CA Advantage PPO Preferred DirectAccess Plus
  • Blue Cross CA CaliforniaCare HMO
  • Blue Cross CA PPO
  • Blue Cross CA Select Plus HMO
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Dr. Adeyanju's Office Information & Appointments

Office Locations

John Muir Medical Group

2700 Grant St Ste 200
Concord, CA 94520
(925) 677-0500


Office Hours and Information

Fax: (925) 677-0519

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 5:00 PM
Saturday Closed
Sunday Closed

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Dr. Adeyanju's Hospital Affiliations

Office Locations

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