Psychologist | Clinical Psychology

Dr. Marissa Mannina, PHD, LP

2970 Camino Diablo Ste 300, Walnut Creek, California, 94597-4001

About Dr. Marissa Mannina

Dr. Marissa Mannina is a psychologist based in Walnut Creek, California who is specialized in Clinical Psychology. Active license number of Dr. Marissa Mannina is 24937 for Clinical Psychology in California. Her current practice location is 2970 Camino Diablo Ste 300, Walnut Creek. Patients can reach her at 925-282-1778 or can fax her at 415-296-5299. Dr. Marissa Mannina is PHD, LP in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1790922532.

Dr. Marissa Mannina 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. Marissa Mannina speciality, 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. Marissa Mannina
Specialization Clinical Psychology
Credentials PHD, LP
Gender Female
Practice Address: 2970 Camino Diablo Ste 300,
Walnut Creek, CA - 94597-4001
Fax 415-296-5299

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 Number1790922532
NPI Enumeration Date: 15 Jan, 2009
NPI Last Update On: 14 Jul, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Marissa Mannina are as mentioned below.

License NumberSpecializationStateStatus
24937Clinical 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. Marissa Mannina
2970 Camino Diablo Ste 300,
Walnut Creek, CA - 94597-4001
Phone: 925-282-1778
Fax: 415-296-5299

Book an Appointment with Dr. Marissa Mannina

To schedule an appointment, contact Dr. Marissa Mannina at 2970 Camino Diablo Ste 300, Walnut Creek, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Marissa Mannina:

Dr. Marissa Mannina 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. Marissa Mannina is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Dr. Marissa Mannina practices at 2970 Camino Diablo Ste 300, Walnut Creek, California, 94597-4001.

To schedule an appointment with Dr. Marissa Mannina, please contact the office at 925-282-1778.

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