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

Marc Allen, DO

Individual provider Internal Medicine Physician · NPI 1356309892

Marc Allen, DO is an Internal Medicine in Commack, New York. Qualified in 1999, 27 years ago. Practices with Dr Marc Allen Medical PC, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
27
Licensed in
NY
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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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

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2238341 (NY)

Record details

NPI number1356309892
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Dr Marc Allen Medical Pc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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