Guillermo Diaz
NP-P | Nurse Practitioner - Psych/Mental Health
185 W John St # 113, Hicksville
New York, 11801-1007
646-856-9971
Guillermo Diaz is a Hicksville, New York based nurse practitioner who is specialized as Psych/Mental Health nurse. Active license number of Guillermo Diaz is 402068 for Psych/Mental Health in New York. His current practice location is 185 W John St # 113, Hicksville. Patients can reach him at 646-856-9971 or can fax him at 516-531-8539. Guillermo Diaz is NP-P with specialization in Psych/Mental Health and his NPI number (Unique professional ID assigned by NPPES) is 1164975801.
Guillermo Diaz provides a full range of primary mental health care services, including biopsychosocial assessment and diagnosis of patients with mental illness and co-occurring disorders. Treatment modalities include both medication and psychotherapeutic management. Psych/Mental Health Nurse Practitioner (PMHNP) works in a variety of settings, including inpatient, emergency and community-based mental health services.
Complete Profile:
Guillermo Diaz speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Guillermo Diaz |
| Specialization: | Psych/Mental Health Nurse Practitioner (PMHNP) |
| Gender: | Male |
| Credentials: | NP-P |
| Practice Address: | 185 W John St # 113, Hicksville,
New York, 11801-1007 |
| Phone: | 646-856-9971 |
| Fax: | 516-531-8539 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1164975801 |
| NPI Enumeration Date: | 29 Jul, 2016 |
| NPI Last Update On: | 05 Sep, 2025 |
Medical Licenses:
NPs can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Guillermo Diaz are as mentioned below.
| License Number | Specialization | State | Status | |
| 402068 | Psych/Mental Health | New York | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Guillermo Diaz
185 W John St # 113,
Hicksville, New York |
| Zip: | 11801-1007 |
| Phone Number: | 646-856-9971 |
| Fax Number: | 516-531-8539 |
Patients can reach Guillermo Diaz at
185 W John St # 113, Hicksville, New York or can
call to book an appointment on 646-856-9971.
Comments/ Reviews:
Patients can read all the reviews posted for Guillermo Diaz below. You may also share your own experience like the quality of treatment, behavior, and overall care provided by Guillermo Diaz. It will help others make informed decisions.
Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.