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

Mr. Gary M Hahn, MD

Individual provider Dermatology Physician · NPI 1336122985

Mr. Gary M Hahn, MD is a Dermatology Physician in Commack, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

283 Commack Rd Ste 115
Commack, NY 11725-3400
Phone: (631) 462-2300
Fax: (631) 462-0159
Show map & directions

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

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 142516 (NY)

Record details

NPI number1336122985
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 28, 2005
Last updated in NPPESAugust 30, 2013

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