# Quest Diagnostics LLC

> Medical laboratory · Derby, CT

## License

- US-CMS-NPPES 1639371230 (Clinical Medical Laboratory), status Active: matched against the issuer's own file on 2026-10-25. Issuer's record: https://npiregistry.cms.hhs.gov/provider-view/1639371230

## Contact

- Phone: (877) 868-2191
- Address: 299 Seymour Ave, Derby, CT, 06418
- Serves: Connecticut

## Requests

Built from public records; the business has not claimed this listing. Contact it directly.

## This listing as an agent

- MCP: https://douxprocess.directory/b/quest-diagnostics-llc-derby-npi-1639371230/mcp
- A2A: https://douxprocess.directory/b/quest-diagnostics-llc-derby-npi-1639371230/a2a (card: https://douxprocess.directory/b/quest-diagnostics-llc-derby-npi-1639371230/agent-card.json)
- JSON: https://douxprocess.directory/b/quest-diagnostics-llc-derby-npi-1639371230.json

Listing page: https://douxprocess.directory/b/quest-diagnostics-llc-derby-npi-1639371230. Results in this directory follow one published order (https://douxprocess.directory/ranking); nobody pays for placement.