Diana Noelle Leondis

LMHC | Mental Health Counselor


  142 Tullamore Rd, Garden City
     New York, 11530-1139
  516-650-3550    Maps & Directions
Diana Noelle Leondis is a Garden City, New York based counselor who is specialized as Mental Health Counselor. Active license number of Diana Noelle Leondis is 011029 for Mental Health Counselor in New York. Her current practice location is 142 Tullamore Rd, Garden City. Patients can book an appointment with her at 516-650-3550.
Diana Noelle Leondis is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.
Complete Profile:
Diana Noelle Leondis speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Name: Diana Noelle Leondis
Specialization: Mental Health Counselor
Gender:Female
Credentials: LMHC
Accepts Medicare Assignment:No
Practice Address:142 Tullamore Rd, Garden City,
New York, 11530-1139
Phone:516-650-3550
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: 1639762909
NPI Enumeration Date: 17 Feb, 2021
NPI Last Update On: 24 Feb, 2023

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Diana Noelle Leondis are as mentioned below.
License NumberSpecializationStateStatus
011029Mental Health Counselor New YorkPrimary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 142 Tullamore Rd,
Garden City, New York
Zip: 11530-1139
Patients can reach Diana Noelle Leondis at 142 Tullamore Rd, Garden City, New York or can call to book an appointment on 516-650-3550.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 June, 2025.

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