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

Individual provider Family Medicine Physician · NPI 1073597738

Dr. James Robert Brown, MD is a Family Practice in Rancho Cucamonga, California. Graduated from University of Michigan Medical School in 1990, 36 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Trained at
University of Michigan Medical School
Licensed in
CA
In the registry since
2005
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

8360 Red Oak St Ste 103
Rancho Cucamonga, CA 91730-0607
Phone: (909) 980-1946
Fax: (909) 980-1625
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A51937 (CA)

Record details

NPI number1073597738
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 5, 2005
Last updated in NPPESJune 2, 2012
Mailing address8360 Red Oak St, Suite 103, Rancho Cucamonga, CA 91730-0607

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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