Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Tan, MD, PC

Organization Specialist · NPI 1386828861

Mark Tan, MD, PC is a Specialist in Smithtown, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

222 Middle Country Rd Ste # 312
Smithtown, NY 11787
Phone: (631) 821-5893
Fax: (631) 724-8901
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 165674 (NY)

Record details

NPI number1386828861
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Tan — Owner · (631) 724-8900
NPI enumeratedDecember 20, 2007
Last updated in NPPESJanuary 7, 2008
Mailing address222 Middle Country Rd, Suite # 312, Smithtown, NY 11787-2871

Other providers in Smithtown