# William Brian Greiser, MD

Source: https://ourhealthnetwork.com/doctor/william-greiser-md-1720114408
NPI: 1720114408
Data source: CMS NPI Registry (NPPES), refreshed monthly

## Quick facts

William Brian Greiser, MD is a emergency medicine based in Trinidad, CO with NPI 1720114408.

## Profile

- Primary specialty: Emergency Medicine
- Credential: MD
- Gender: Male
- NPI: 1720114408 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1720114408))

## Practice and contact

- Address: 410 Benedicta Ave, Trinidad, CO, 810822005
- Phone: (800) 893-9698

## Insurance accepted (3 networks)

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

- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 4 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans

To verify a specific plan covers William Brian Greiser, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1720114408).

## Related on OurHealthNetwork

- [More Emergency Medicine doctors in TRINIDAD, CO](https://ourhealthnetwork.com/emergency-medicine/co/trinidad)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1720114408)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)