Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Johnson O Adeyanju, MD

Individual provider Internal Medicine Physician · NPI 1467403147

Johnson O Adeyanju, MD is an Internal Medicine in Concord, California. Graduated from Louisiana State University School of Medicine in New Orleans in 1989, 37 years ago. Practices with John Muir Physician Network, a 486-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2700 Grant St Ste 200
Concord, CA 94520-2266
Phone: (925) 677-0500
Fax: (925) 677-0519
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A49920 (CA)

Record details

NPI number1467403147
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2006
Last updated in NPPESJune 17, 2012
Mailing addressDept 34929, P.O. Box 39000, San Francisco, CA 94139-0001

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 1989 (37 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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