# Gregory P Fontana, MD

Source: https://ourhealthnetwork.com/doctor/gregory-fontana-md-1508840570
NPI: 1508840570
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Gregory P Fontana, MD is a thoracic surgery based in Thousand Oaks, CA practicing at Golden State Providers, A Medical Corporation with NPI 1508840570.

## Profile

- Primary specialty: Thoracic Surgery
- Secondary specialties: CARDIAC SURGERY
- Credential: MD
- Gender: Male
- Medical school: UNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
- Graduation year: 1984
- NPI: 1508840570 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1508840570))

## Practice and contact

- Practice name: Golden State Providers, A Medical Corporation
- Address: 215 W Janss Rd, Thousand Oaks, CA, 913601847
- Phone: (805) 852-9100
- Group practice size: 21 members

## Insurance accepted (6 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 18 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 7 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Gregory P Fontana, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1508840570).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 218 disclosed payments from medical industry sources totaling approximately $123,448.

Largest disclosed payer: Medtronic, Inc. ($76,363 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Thoracic Surgery doctors in THOUSAND OAKS, CA](https://ourhealthnetwork.com/thoracic-surgery/ca/thousand-oaks)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1508840570)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)