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

Sean Guinnane, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1346997137

Sean Guinnane, PMHNP is a Nurse Practitioner in Buffalo, New York. Qualified in 2021, 5 years ago. Practices with Erie County South East Corp V, a 22-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
5
Licensed in
NY
In the registry since
2022
What do these letters mean?
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

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Practice location Address checks out

1050 Niagara St
Buffalo, NY 14213-2001
Phone: (716) 856-2587
Fax: (716) 856-2608
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 100 N Village Ave Ste 27, Rockville Centre, NY 11570-3712 — (929) 266-7360

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 403981 (NY)

Record details

NPI number1346997137
Entity typeIndividual (Type 1)
GenderMale
Credentials PMHNP
Sole proprietorYes
NPI enumeratedMarch 2, 2022
Last updated in NPPESJune 17, 2022
Certification dateJune 17, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Erie County South East Corp V — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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