# Katherine Danielle Williamson, MD

Source: https://ourhealthnetwork.com/doctor/katherine-williamson-md-1982916375
NPI: 1982916375
Data source: CMS NPI Registry (NPPES), refreshed monthly

## Quick facts

Katherine Danielle Williamson, MD is a pediatric medicine based in Lake Forest, CA with NPI 1982916375.

## Profile

- Primary specialty: Pediatric Medicine
- Credential: MD
- Gender: Female
- NPI: 1982916375 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1982916375))

## Practice and contact

- Address: 23321 El Toro Rd, Suite F, Lake Forest, CA, 926304825
- Phone: (949) 388-1798

## 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) — 19 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 8 plans
- [Blue Shield of California](https://ourhealthnetwork.com/insurance/blue-shield-of-california) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 2 plans

To verify a specific plan covers Katherine Danielle Williamson, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1982916375).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 18 disclosed payments from medical industry sources totaling approximately $407.

Largest disclosed payer: IRONSHORE PHARMACEUTICALS INC. ($112 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 Pediatric Medicine doctors in LAKE FOREST, CA](https://ourhealthnetwork.com/pediatric-medicine/ca/lake-forest)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1982916375)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)