# Mark Tieman, MD, PC

> Clinic · Commack, NY

## License

- US-CMS-NPPES 1821375940 (Clinic/Center, Primary Care), status Active: matched against the issuer's own file on 2026-11-03. Issuer's record: https://npiregistry.cms.hhs.gov/provider-view/1821375940

## Contact

- Phone: (631) 858-0400
- Address: 356 Veterans Memorial Hwy, Commack, NY, 11725
- Serves: New York

## 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/mark-tieman-md-pc-commack-npi-1821375940/mcp
- A2A: https://douxprocess.directory/b/mark-tieman-md-pc-commack-npi-1821375940/a2a (card: https://douxprocess.directory/b/mark-tieman-md-pc-commack-npi-1821375940/agent-card.json)
- JSON: https://douxprocess.directory/b/mark-tieman-md-pc-commack-npi-1821375940.json

Listing page: https://douxprocess.directory/b/mark-tieman-md-pc-commack-npi-1821375940. Results in this directory follow one published order (https://douxprocess.directory/ranking); nobody pays for placement.