# Mark J Coronel MD PC

> Doctor · Riverhead, NY

## License

- US-CMS-NPPES 1639445869 (Internal Medicine, Gastroenterology), status Active: matched against the issuer's own file on 2026-10-25. Issuer's record: https://npiregistry.cms.hhs.gov/provider-view/1639445869

## Contact

- Phone: (631) 591-3000
- Website: https://eastendgastro.com
- Area: Riverhead, NY
- Serves: New York

## Requests

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## This listing as an agent

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- A2A: https://douxprocess.directory/b/mark-j-coronel-md-pc-riverhead-npi-1639445869/a2a (card: https://douxprocess.directory/b/mark-j-coronel-md-pc-riverhead-npi-1639445869/agent-card.json)
- JSON: https://douxprocess.directory/b/mark-j-coronel-md-pc-riverhead-npi-1639445869.json

Listing page: https://douxprocess.directory/b/mark-j-coronel-md-pc-riverhead-npi-1639445869. Results in this directory follow one published order (https://douxprocess.directory/ranking); nobody pays for placement.