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

Ronald M Johnson, MD

Individual provider Surgery Physician · NPI 1477672046

Ronald M Johnson, MD is a General Surgery in LA Mesa, California. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1968, 58 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
58
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5360 Jackson Dr Ste 100
LA Mesa, CA 91943
Phone: (619) 462-5900
Fax: (619) 462-9899
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence G19831 (CA)

Record details

NPI number1477672046
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2007
Last updated in NPPESJuly 8, 2007
Mailing addressPo Box 2507, La Mesa, CA 91943-2507

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1968 (58 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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