# William Seng Tan, DO

Source: https://ourhealthnetwork.com/doctor/william-tan-do-1891112306
NPI: 1891112306
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

William Seng Tan, DO is a family practice based in Olympia Fields, IL with NPI 1891112306.

## Profile

- Primary specialty: Family Practice
- Credential: DO
- Gender: Male
- Medical school: NOVA SOUTHEASTERN COLLEGE OF OSTEO MEDICINE
- Graduation year: 2013
- NPI: 1891112306 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1891112306))

## Practice and contact

- Address: 20060 Governors Dr, Suite 204, Olympia Fields, IL, 604611099
- Phone: (708) 283-8300

## 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:

- [HCSC: BCBS Illinois](https://ourhealthnetwork.com/insurance/hcsc-bcbs-illinois) — 91 plans
- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 10 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 10 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 6 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 1 plan

To verify a specific plan covers William Seng Tan, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1891112306).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 1 disclosed payment from medical industry sources totaling approximately $23.

Largest disclosed payer: Novo Nordisk Inc ($23 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 Family Practice doctors in OLYMPIA FIELDS, IL](https://ourhealthnetwork.com/family-practice/il/olympia-fields)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1891112306)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)