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

Dr. Charles Joseph Renner, MD

Individual provider Family Medicine Physician · NPI 1669439733

Dr. Charles Joseph Renner, MD is a Family Practice in Concord, California. Graduated from Tufts University School of Medicine in 1988, 38 years ago. Practices with John Muir Physician Network, a 486-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
38
Trained at
Tufts University School of Medicine
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

5161 Clayton Rd Ste C
Concord, CA 94521
Phone: (925) 687-2200
Fax: (925) 689-5608
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5161 Clayton Rd Ste F, Concord, CA 94521 — (925) 609-8282

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G67128 (CA)

Record details

NPI number1669439733
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 1, 2006
Last updated in NPPESNovember 5, 2018
Mailing address1450 Treat Blvd # 300, Walnut Creek, CA 94597-2168

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Concord