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

Dr. Gregory Fontana, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1508840570

Dr. Gregory Fontana, MD is a Thoracic Surgery in Thousand Oaks, California. Graduated from University of California, Geffen School of Medicine in 1984, 42 years ago. Practices with Golden State Providers, a Medical Corporation, a 23-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
42
Trained at
University of California, Geffen School of Medicine
Licensed in
NY
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

215 W Janss Rd
Thousand Oaks, CA 91360-1847
Phone: (805) 852-9100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 263949 (NY)

Record details

NPI number1508840570
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 2, 2005
Last updated in NPPESFebruary 9, 2022
Mailing address227 W Janss Rd, Suite 340, Thousand Oaks, CA 91360-1848

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Also practisesCARDIAC SURGERY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Golden State Providers, A Medical Corporation — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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