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

Gabrielle L Sullivan, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1740941830

Gabrielle L Sullivan, PMHNP is a Nurse Practitioner in Lockport, New York. Qualified in 2021, 5 years ago. Practices with Horizon Health Services Inc, a 144-clinician group, accepts Medicare assignment and offers telehealth. 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.

See every abbreviation used in this directory →

Practice location Address checks out

637 Davison Rd
Lockport, NY 14094-5339
Phone: (716) 433-2484
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence F403775-01 (NY)

Record details

NPI number1740941830
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP
Sole proprietorNo
NPI enumeratedJanuary 1, 2022
Last updated in NPPESJune 13, 2022
Certification dateJune 13, 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 Horizon Health Services Inc — 144 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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