Dr. Donna D Hatziyianis Guarton is a Massapequa Park, New York based psychologist who is specialized in Clinical Psychology. Active license number of Dr. Donna D Hatziyianis Guarton is 011485-1 for Clinical Psychology in New York. Her current practice location is 18 Mansfield Dr, Massapequa Park. Patients can reach her at 516-448-0443. Dr. Donna D Hatziyianis Guarton is PH.D. in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1265306385. Dr. Donna D Hatziyianis Guarton is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.
Complete Profile:
Dr. Donna D Hatziyianis Guarton speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
Name:
Dr. Donna D Hatziyianis Guarton
Specialization:
Clinical Psychology
Gender:
Female
Credentials:
PH.D.
Practice Address:
18 Mansfield Dr, Massapequa Park, New York, 11762-4034
Phone:
516-448-0443
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:
1265306385
NPI Enumeration Date:
01 Oct, 2025
NPI Last Update On:
01 Oct, 2025
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Donna D Hatziyianis Guarton are as mentioned below.
License Number
Specialization
State
Status
011485-1
Clinical Psychology
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:
Dr. Donna D Hatziyianis Guarton 18 Mansfield Dr, Massapequa Park, New York
Zip:
11762-4034
Phone Number:
544-804-4316
Patients can reach Dr. Donna D Hatziyianis Guarton at 18 Mansfield Dr, Massapequa Park, New York or can call to book an appointment on 516-448-0443.
Comments/ Reviews:
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.