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

Individual provider Internal Medicine Physician · NPI 1720152663

Ronald Garren, MD is an Internal Medicine in Monterey, California. Graduated from Harvard Medical School in 1966, 60 years ago. Practices with Monterey Bay Oncology a Medical Corporation, a 13-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
60
Trained at
Harvard Medical School
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

5 Harris Ct Bldg T2ND # 201
Monterey, CA 93940-5750
Phone: (831) 642-4060
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 G19297 (CA)

Record details

NPI number1720152663
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 20, 2006
Last updated in NPPESMarch 16, 2012
Mailing address5 Harris Ct Bldg T, Monterey, CA 93940-5750

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1966 (60 years in practice)
Group practice Monterey Bay Oncology A Medical Corporation — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Monterey