Psychologist | Clinical Psychology

Dr. Mary Kelso, PH.D.

325 E Hillcrest Dr Ste 115, Thousand Oaks, California, 91360-7782

About Dr. Mary Kelso

Dr. Mary Kelso is a psychologist based in Thousand Oaks, California who is specialized in Clinical Psychology. Active license number of Dr. Mary Kelso is PSY10466 for Clinical Psychology in California. Her current practice location is 325 E Hillcrest Dr Ste 115, Thousand Oaks. Patients can contact her at 805-379-9600 or can fax her at 805-495-6970. Dr. Mary Kelso, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1154312189.

Dr. Mary Kelso 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.

Practice Information

Dr. Mary Kelso'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. Mary Kelso
Specialization Clinical Psychology
Credentials PH.D.
Gender Female
Practice Address: 325 E Hillcrest Dr Ste 115,
Thousand Oaks, CA - 91360-7782
Fax 805-495-6970

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 Number1154312189
NPI Enumeration Date: 31 Oct, 2005
NPI Last Update On: 26 Feb, 2019

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. Mary Kelso are as mentioned below.

License NumberSpecializationStateStatus
PSY10466Clinical 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. Mary Kelso
Po Box 7251,
Westlake Village, CA - 91359-7251
Phone: 805-379-9600
Fax: 805-495-6970

Book an Appointment with Dr. Mary Kelso

To schedule an appointment, contact Dr. Mary Kelso at 325 E Hillcrest Dr Ste 115, Thousand Oaks, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Mary Kelso:

Dr. Mary Kelso is a psychologist specializing in Clinical Psychology. She 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.

Yes, Dr. Mary Kelso 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. Mary Kelso practices at 325 E Hillcrest Dr Ste 115, Thousand Oaks, California, 91360-7782.

To schedule an appointment with Dr. Mary Kelso, please contact the office at 805-379-9600.

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