Psychologist | Clinical Psychology

Dr. Gregory Muller, PH.D.

1601 Trinity St, Building B, Stop Z0600, Austin, Texas, 78712-1765

About Dr. Gregory Muller

Dr. Gregory Muller is a psychologist based in Austin, Texas who is specialized in Clinical Psychology. Active license number of Dr. Gregory Muller is 39544 for Clinical Psychology in Texas. His current practice location is 1601 Trinity St, Building B, Stop Z0600, Austin. Patients can contact him at 833-882-2737. Dr. Gregory Muller, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1962132902.

Dr. Gregory Muller 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. Gregory Muller'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. Gregory Muller
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 1601 Trinity St, Building B, Stop Z0600,
Austin, TX - 78712-1765

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 Number1962132902
NPI Enumeration Date: 13 Jun, 2022
NPI Last Update On: 20 Jan, 2023

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. Gregory Muller are as mentioned below.

License NumberSpecializationStateStatus
39544Clinical Psychology TexasPrimary

Mailing Address

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

Dr. Gregory Muller
1601 Trinity St,
Austin, TX - 78712-1765
Phone: 833-882-2737

Book an Appointment with Dr. Gregory Muller

To schedule an appointment, contact Dr. Gregory Muller at 1601 Trinity St, Building B, Stop Z0600, Austin, Texas or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Gregory Muller:

Dr. Gregory Muller 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. Gregory Muller 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. Gregory Muller practices at 1601 Trinity St, Building B, Stop Z0600, Austin, Texas, 78712-1765.

To schedule an appointment with Dr. Gregory Muller, please contact the office at 833-882-2737.

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