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

Daniel L Mayer MD PC

Organization Internal Medicine Physician · NPI 1306858857

Daniel L Mayer MD PC is an Internal Medicine Physician in Smithtown, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
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

263 E Main St
Smithtown, NY 11787
Phone: (631) 366-5252
Fax: (631) 366-4371
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 1400451 (NY)

Record details

NPI number1306858857
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Daniel Mayer — President · (631) 366-5252
NPI enumeratedAugust 13, 2006
Last updated in NPPESOctober 29, 2007
Mailing address263 East Main Street, Smithtown, NY 11787

Other providers in Smithtown