Psychologist | Clinical Psychology

Dr. Gary Aidan Hayes, PH.D

1303 Jefferson St Suite 600a, Napa, California, 94559

About Dr. Gary Aidan Hayes

Dr. Gary Aidan Hayes is a psychologist based in Napa, California who is specialized in Clinical Psychology. Active license number of Dr. Gary Aidan Hayes is PSY10335 for Clinical Psychology in California. His current practice location is 1303 Jefferson St Suite 600a, Napa. Patients can contact him at 415-827-9969 or can fax him at 707-253-0457. Dr. Gary Aidan Hayes, PH.D, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1801161203.

Dr. Gary Aidan Hayes 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Gary Aidan Hayes's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Gary Aidan Hayes
Specialization Clinical Psychology
Credentials PH.D
Gender Male
Practice Address: 1303 Jefferson St Suite 600a,
Napa, CA - 94559
Fax 707-253-0457

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1801161203
NPI Enumeration Date: 19 Mar, 2012
NPI Last Update On: 19 Mar, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Dr. Gary Aidan Hayes are as mentioned below.

License NumberSpecializationStateStatus
PSY10335Clinical Psychology CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. Gary Aidan Hayes
1303 Jefferson St Suite 600a,
Napa, CA - 94559
Phone: 415-827-9969
Fax: 707-253-0457

Book an Appointment with Dr. Gary Aidan Hayes

To schedule an appointment, contact Dr. Gary Aidan Hayes at 1303 Jefferson St Suite 600a, Napa, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Gary Aidan Hayes:

Dr. Gary Aidan Hayes is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Gary Aidan Hayes is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Dr. Gary Aidan Hayes practices at 1303 Jefferson St Suite 600a, Napa, California, 94559.

To schedule an appointment with Dr. Gary Aidan Hayes, please contact the office at 415-827-9969.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.