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

Dr Marc Allen Medical PC

Organization Internal Medicine Physician · NPI 1003869850

Dr Marc Allen Medical PC is an Internal Medicine Physician in Commack, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
Specialties on file
2
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

358 Veterans Memorial Hwy Ste 11
Commack, NY 11725
Phone: (631) 543-8844
Fax: (631) 543-8840
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 236374 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2238341 (NY)

Record details

NPI number1003869850
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Marc Allen — Owner President · (631) 543-8844
NPI enumeratedMay 19, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address358 Veterans Memorial Hwy, Suite 11, Commack, NY 11725

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