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

Dr. Robert Nicolas Keenan, MD

Individual provider Surgery Physician · NPI 1558325654

Dr. Robert Nicolas Keenan, MD is a General Surgery in Fallbrook, California. Graduated from University of Texas Southwestern Medical School at Dallas in 2001, 25 years ago. Practices with Barton Medical Foundation, a 96-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Trained at
University of Texas Southwestern Medical School at Dallas
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

1374 S Mission Rd Ste 408
Fallbrook, CA 92028-4006
Phone: (951) 698-4650
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A79742 (CA)

Record details

NPI number1558325654
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 14, 2006
Last updated in NPPESJune 15, 2023
Certification dateJune 15, 2023

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 2001 (25 years in practice)
Group practice Barton Medical Foundation — 96 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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