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

Dr. Michael Zach Koontz, MD

Individual provider Internal Medicine Physician · NPI 1245410588

Dr. Michael Zach Koontz, MD is a Medical Oncology in Monterey, California. Graduated from University of California, Irvine, California College of Medicine in 2007, 19 years ago. Practices with Monterey Bay Oncology a Medical Corporation, a 13-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
19
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2007
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

5 Harris Ct Bldg T 201
Monterey, CA 93940-5750
Phone: (831) 375-4105
Fax: (831) 655-1277
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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 A105130 (CA)

Record details

NPI number1245410588
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2007
Last updated in NPPESJuly 1, 2014

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Monterey Bay Oncology A Medical Corporation — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Monterey