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

Mary Elizabeth Happ, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1538972930

Mary Elizabeth Happ, PMHNP is a Nurse Practitioner in Jamestown, New York. Qualified in 2024, 2 years ago. Practices with The Chautauqua Center Inc, a 39-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
2
Licensed in
NY
In the registry since
2025
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

107 Institute St
Jamestown, NY 14701-6628
Phone: (716) 484-4334
Fax: (833) 974-2027
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 406665 (NY)

Record details

NPI number1538972930
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP
Sole proprietorYes
NPI enumeratedJanuary 29, 2025
Last updated in NPPESJanuary 29, 2025
Certification dateJanuary 29, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice The Chautauqua Center Inc — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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