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

William C Koonce, MD

Individual provider Internal Medicine Physician · NPI 1124010095

William C Koonce, MD is an Internal Medicine in Santa Barbara, California. Graduated from University of California, Irvine, California College of Medicine in 1985, 41 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
41
Trained at
University of California, Irvine, California College of Medicine
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

219 Nogales Ave Ste B
Santa Barbara, CA 93105-3848
Phone: (805) 682-7200
Fax: (805) 682-3278
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G58414 (CA)

Record details

NPI number1124010095
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 17, 2005
Last updated in NPPESSeptember 9, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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