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

Mary P Leahy, MD

Individual provider Internal Medicine Physician · NPI 1215921283

Mary P Leahy, MD is an Internal Medicine Physician in West Nyack, New York. Licensed in New York. Registered with an NPI since 2005.

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

2 Crosfield Ave Ste 318
West Nyack, NY 10994-2226
Phone: (845) 353-5600
Fax: (845) 353-5668
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 1671161 (NY)

Record details

NPI number1215921283
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 7, 2005
Last updated in NPPESMarch 15, 2011

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