# Karen Chang, DO

Source: https://ourhealthnetwork.com/doctor/karen-chang-do-1861855439
NPI: 1861855439
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Karen Chang, DO is a internal medicine based in Rialto, CA practicing at San Bernardino Gastroenterology Associates Inc with NPI 1861855439.

## Profile

- Primary specialty: Internal Medicine
- Credential: DO
- Gender: Female
- Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
- Graduation year: 2016
- NPI: 1861855439 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1861855439))

## Practice and contact

- Practice name: San Bernardino Gastroenterology Associates Inc
- Address: 2006 N Riverside Ave, Suite B, Rialto, CA, 923774697
- Phone: (909) 644-4033
- Group practice size: 7 members

## Insurance accepted (4 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) — 17 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 8 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 4 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Karen Chang, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1861855439).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 44 disclosed payments from medical industry sources totaling approximately $903.

Largest disclosed payer: ABBVIE INC. ($459 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 Internal Medicine doctors in RIALTO, CA](https://ourhealthnetwork.com/internal-medicine/ca/rialto)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1861855439)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)