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

Dr. Keith L Martin, MD

Individual provider Specialist · NPI 1649280546

Dr. Keith L Martin, MD is a Gastroenterology in Yorba Linda, California. Graduated from University of Oklahoma College of Medicine in 1975, 51 years ago. Practices with Regents of the University of California, a 61-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
51
Trained at
University of Oklahoma College of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

16671 Yorba Linda Blvd Ste 200
Yorba Linda, CA 92886-2025
Phone: (714) 996-3700
Fax: (714) 961-7839
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G30724 (CA)
Specialist Taxonomy 174400000X · Licence G30724 (CA)

Record details

NPI number1649280546
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2006
Last updated in NPPESMay 6, 2025
Certification dateMay 6, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1975 (51 years in practice)
Group practice Regents Of The University Of California — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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