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

Mrs. Mary Katherine Kosowski, A-GNP-C

Individual provider Adult Health Nurse Practitioner · NPI 1558937441

Mrs. Mary Katherine Kosowski, A-GNP-C is a Nurse Practitioner in West Seneca, New York. Qualified in 2019, 7 years ago. Practices with Trinity Medical Wny PC, a 201-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
7
Licensed in
NY
In the registry since
2021
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Practice location Address checks out

600 Harlem Rd
West Seneca, NY 14224-1151
Phone: (716) 332-2121
Fax: (716) 332-2122
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 34 Benwood Ave, Buffalo, NY 14214-1761 — (716) 986-9199

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence F309522-01 (NY)

Record details

NPI number1558937441
Entity typeIndividual (Type 1)
GenderFemale
Credentials A-GNP-C
Sole proprietorNo
NPI enumeratedJune 1, 2021
Last updated in NPPESAugust 28, 2025
Certification dateAugust 28, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Trinity Medical Wny Pc — 201 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in West Seneca