# Douglas P Duffy, MD

Source: https://ourhealthnetwork.com/doctor/douglas-duffy-md-1366542227
NPI: 1366542227
Data source: CMS NPI Registry (NPPES), refreshed monthly

## Quick facts

Douglas P Duffy, MD is a internal medicine based in Marshfield, WI with NPI 1366542227.

## Profile

- Primary specialty: Internal Medicine
- Credential: MD
- Gender: Male
- NPI: 1366542227 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1366542227))

## Practice and contact

- Address: 1000 N Oak Ave, Marshfield, WI, 54449
- Phone: (715) 387-5345

## 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:

- [Highmark BCBS Delaware](https://ourhealthnetwork.com/insurance/highmark-bcbs-delaware) — 11 plans
- [Highmark BCBS WV](https://ourhealthnetwork.com/insurance/highmark-bcbs-wv) — 6 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 2 plans
- [BCBS North Dakota](https://ourhealthnetwork.com/insurance/bcbs-north-dakota) — 1 plan

To verify a specific plan covers Douglas P Duffy, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1366542227).

## Related on OurHealthNetwork

- [More Internal Medicine doctors in MARSHFIELD, WI](https://ourhealthnetwork.com/internal-medicine/wi/marshfield)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1366542227)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)