# William Chastain, MD

Source: https://ourhealthnetwork.com/doctor/william-chastain-md-1891980777
NPI: 1891980777
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

William Chastain, MD is a internal medicine based in Spartanburg, SC practicing at Spartanburg Medical Center with NPI 1891980777.

## Profile

- Primary specialty: Internal Medicine
- Credential: MD
- Gender: Male
- Graduation year: 2007
- NPI: 1891980777 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1891980777))

## Practice and contact

- Practice name: Spartanburg Medical Center
- Address: 101 E Wood St, Spartanburg, SC, 293033040
- Phone: (864) 560-6654
- Group practice size: 1071 members

## Insurance accepted (11 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) — 18 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 13 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 11 plans
- [Highmark BCBS Delaware](https://ourhealthnetwork.com/insurance/highmark-bcbs-delaware) — 11 plans
- [BCBS Minnesota](https://ourhealthnetwork.com/insurance/bcbs-minnesota) — 8 plans
- [Highmark BCBS WV](https://ourhealthnetwork.com/insurance/highmark-bcbs-wv) — 6 plans
- [BCBS North Carolina](https://ourhealthnetwork.com/insurance/bcbs-north-carolina) — 4 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [Highmark BCBS Pennsylvania](https://ourhealthnetwork.com/insurance/highmark-bcbs-pennsylvania) — 1 plan
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers William Chastain, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1891980777).

## 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 $57.

Largest disclosed payer: Merck Sharp & Dohme LLC ($36 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 SPARTANBURG, SC](https://ourhealthnetwork.com/internal-medicine/sc/spartanburg)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1891980777)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)