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

Individual provider Surgery Physician · NPI 1114938867

Ronald C Holness, MD is a General Surgery in Los Alamitos, California. Graduated from University of California, Geffen School of Medicine in 1983, 43 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
43
Trained at
University of California, Geffen 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

3801 Katella Ave #420
Los Alamitos, CA 90720-3338
Phone: (562) 598-2439
Fax: (562) 598-0022
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence G55605 (CA)

Record details

NPI number1114938867
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 10, 2006
Last updated in NPPESFebruary 25, 2013
Mailing address3801 Katella Ave, 420, Los Alamitos, CA 90720-3338

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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