# Mark A Berk, MD

Source: https://ourhealthnetwork.com/doctor/mark-berk-md-1235196858
NPI: 1235196858
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Mark A Berk, MD is a dermatology based in Lake Forest, IL practicing at Dermatologists Of Illinois, Pllc with NPI 1235196858.

## Profile

- Primary specialty: Dermatology
- Credential: MD
- Gender: Male
- Graduation year: 1981
- NPI: 1235196858 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1235196858))

## Practice and contact

- Practice name: Dermatologists Of Illinois, Pllc
- Address: 225 E Deerpath, Suite 50, Lake Forest, IL, 600451970
- Phone: (847) 234-6121
- Group practice size: 12 members

## Insurance accepted (7 networks)

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

- [HCSC: BCBS Illinois](https://ourhealthnetwork.com/insurance/hcsc-bcbs-illinois) — 108 plans
- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 17 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 7 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 Mark A Berk, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1235196858).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 8 disclosed payments from medical industry sources totaling approximately $267.

Largest disclosed payer: Janssen Biotech, Inc. ($172 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 Dermatology doctors in LAKE FOREST, IL](https://ourhealthnetwork.com/dermatology/il/lake-forest)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1235196858)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)