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

Guillermo Diaz, NP-P

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1164975801

Guillermo Diaz, NP-P is a Nurse Practitioner in Hicksville, New York. Qualified in 2016, 10 years ago. Works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
10
Licensed in
NY
In the registry since
2016
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Practice location Address checks out

185 W John St # 113
Hicksville, NY 11801-1007
Phone: (646) 856-9971
Fax: (516) 531-8539
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1985 Marcus Ave Ste 110, New Hyde Park, NY 11042-2024 — (855) 201-4988

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 402068 (NY)

Record details

NPI number1164975801
Entity typeIndividual (Type 1)
GenderMale
Credentials NP-P
Sole proprietorNo
NPI enumeratedJuly 29, 2016
Last updated in NPPESSeptember 5, 2025
Certification dateSeptember 5, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Hicksville