Individual provider · Type 1 NPI

Mary Kathleen McMahon, LMHC

Mental Health Counselor · Massapequa Park, NY

NPI number 1215857487 Active

Practice location

1035 Park Blvd Ste 2C
Massapequa Park, NY 11762-2743

Call (516) 247-6449 Map

Other practice locations

  • 303 5th Ave Rm 905, New York, NY 10016-6682 · (516) 247-6449

Specialties and licenses

TaxonomyCodeLicense
Mental Health Counselor Primary 101YM0800X017914 (NY)

Mental Health Counselor: Definition to come...

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About NPI 1215857487

Mary Kathleen McMahon, LMHC's National Provider Identifier is 1215857487, issued on Jul 17, 2026. The primary taxonomy on file is Mental Health Counselor (101YM0800X), and the practice location is in Massapequa Park, NY. The record was last updated on Jul 17, 2026.