# John C Gustafson, MD

Source: https://ourhealthnetwork.com/doctor/john-gustafson-md-1003836016
NPI: 1003836016
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

John C Gustafson, MD is a obstetrics/gynecology based in Ventura, CA practicing at Community Memorial Health System with NPI 1003836016.

## Profile

- Primary specialty: Obstetrics/Gynecology
- Credential: MD
- Gender: Male
- Medical school: UNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
- Graduation year: 1977
- NPI: 1003836016 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1003836016))

## Practice and contact

- Practice name: Community Memorial Health System
- Address: 147 N Brent St, Ventura, CA, 930032809
- Phone: (805) 652-5011
- Group practice size: 193 members

## Insurance accepted (8 networks)

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

- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 10 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 8 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 8 plans
- [Blue Shield of California](https://ourhealthnetwork.com/insurance/blue-shield-of-california) — 3 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers John C Gustafson, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1003836016).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 3 disclosed payments from medical industry sources totaling approximately $54.

Largest disclosed payer: Bayer Healthcare Pharmaceuticals Inc. ($20 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 Obstetrics/Gynecology doctors in VENTURA, CA](https://ourhealthnetwork.com/obstetrics-gynecology/ca/ventura)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1003836016)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)