Psychologist | Clinical Psychology

Dr. Ronn Johnson, PH.D., ABPP

321 Cassidy St, Oceanside, California, 92054-5314

About Dr. Ronn Johnson

Dr. Ronn Johnson is a psychologist based in Oceanside, California who is specialized in Clinical Psychology. Active license number of Dr. Ronn Johnson is PSY11764 for Clinical Psychology in California. His current practice location is 321 Cassidy St, Oceanside. Patients can contact him at 760-721-2171. Dr. Ronn Johnson, PH.D., ABPP, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1194093039.

Dr. Ronn Johnson 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. Ronn Johnson'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. Ronn Johnson
Specialization Clinical Psychology
Credentials PH.D., ABPP
Gender Male
Practice Address: 321 Cassidy St,
Oceanside, CA - 92054-5314

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 Number1194093039
NPI Enumeration Date: 07 Dec, 2011
NPI Last Update On: 15 Sep, 2015

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. Ronn Johnson are as mentioned below.

License NumberSpecializationStateStatus
PSY11764Clinical Psychology CaliforniaPrimary
8969Clinical Psychology MassachusettsSecondary
010201Forensic Psychology New YorkSecondary
PSY11764Forensic Psychology CaliforniaSecondary

Mailing Address

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

Dr. Ronn Johnson
321 Cassidy St,
Oceanside, CA - 92054-5314
Phone: 760-721-2171

Book an Appointment with Dr. Ronn Johnson

To schedule an appointment, contact Dr. Ronn Johnson at 321 Cassidy St, Oceanside, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Ronn Johnson:

Dr. Ronn Johnson 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. Ronn Johnson 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. Ronn Johnson practices at 321 Cassidy St, Oceanside, California, 92054-5314.

To schedule an appointment with Dr. Ronn Johnson, please contact the office at 760-721-2171.

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