Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mr. Gian Antonio Leonzon, MSN, RN-BC, PMHNP-BC

Individual provider Registered Nurse · NPI 1306392246

Mr. Gian Antonio Leonzon, MSN, RN-BC, PMHNP-BC is a Nurse Practitioner in Jamaica, New York. Qualified in 2017, 9 years ago. Practices with Brooklyn Center for Psychotherapy, Inc, a 5-clinician group and offers telehealth. Licensed in New York.

Years since qualifying
9
Licensed in
NY
In the registry since
2016
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

161-10 Jamaica Ave 2nd Fl
Jamaica, NY 11432
Phone: (718) 704-5488
Fax: (718) 704-5485
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 402198 (NY)
Registered Nurse Taxonomy 163W00000X · Licence 689712 (NY)

Record details

NPI number1306392246
Entity typeIndividual (Type 1)
GenderMale
Credentials MSN , RN-BC , PMHNP-BC
Sole proprietorNo
NPI enumeratedAugust 31, 2016
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Brooklyn Center For Psychotherapy, Inc. — 5 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients71
Services billed 469 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Brooklyn Center for Psychotherapy, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Jamaica