Psychologist | Clinical Psychology

Dr. Thomas Patrick Howell, PH.D

1254 Irvine Blvd, Suite 240, Tustin, California, 92780-3509

About Dr. Thomas Patrick Howell

Dr. Thomas Patrick Howell is a psychologist based in Tustin, California who is specialized in Clinical Psychology. Active license number of Dr. Thomas Patrick Howell is PSY-10340 for Clinical Psychology in California. His current practice location is 1254 Irvine Blvd, Suite 240, Tustin. Patients can contact him at 714-544-1622 or can fax him at 714-544-9766. Dr. Thomas Patrick Howell, PH.D, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1639364284.

Dr. Thomas Patrick Howell 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. Thomas Patrick Howell'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. Thomas Patrick Howell
Specialization Clinical Psychology
Credentials PH.D
Gender Male
Practice Address: 1254 Irvine Blvd, Suite 240
Tustin, CA - 92780-3509
Fax 714-544-9766

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 Number1639364284
NPI Enumeration Date: 06 Sep, 2007
NPI Last Update On: 06 Sep, 2007

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. Thomas Patrick Howell are as mentioned below.

License NumberSpecializationStateStatus
PSY-10340Clinical 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. Thomas Patrick Howell
1254 Irvine Blvd, Suite 240
Tustin, CA - 92780-3509
Phone: 714-544-1622
Fax: 714-544-9766

Book an Appointment with Dr. Thomas Patrick Howell

To schedule an appointment, contact Dr. Thomas Patrick Howell at 1254 Irvine Blvd, Suite 240, Tustin, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Thomas Patrick Howell:

Dr. Thomas Patrick Howell 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. Thomas Patrick Howell 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. Thomas Patrick Howell practices at 1254 Irvine Blvd, Suite 240, Tustin, California, 92780-3509.

To schedule an appointment with Dr. Thomas Patrick Howell, please contact the office at 714-544-1622.

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