Psychologist | Clinical Psychology

John J Ferdenzi

427 S Marengo Ave Ste 5, Pasadena, California, 91101-3134

About John J Ferdenzi

John J Ferdenzi is a psychologist based in Pasadena, California who is specialized in Clinical Psychology. Active license number of John J Ferdenzi is 145635 for Clinical Psychology in California. His current practice location is 427 S Marengo Ave Ste 5, Pasadena. Patients can contact him at 213-718-1422. John J Ferdenzi NPI number (Unique professional ID assigned by NPPES) is 1285455287.

John J Ferdenzi 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

John J Ferdenzi'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 John J Ferdenzi
Specialization Clinical Psychology
Gender Male
Practice Address: 427 S Marengo Ave Ste 5,
Pasadena, CA - 91101-3134

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 Number1285455287
NPI Enumeration Date: 22 Oct, 2024
NPI Last Update On: 22 Oct, 2024

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 John J Ferdenzi are as mentioned below.

License NumberSpecializationStateStatus
145635Clinical 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.

John J Ferdenzi
3712 Toland Way,
Los Angeles, CA - 90065-3615
Phone: 818-455-3923

Book an Appointment with John J Ferdenzi

To schedule an appointment, contact John J Ferdenzi at 427 S Marengo Ave Ste 5, Pasadena, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about John J Ferdenzi:

John J Ferdenzi 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, John J Ferdenzi 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.

John J Ferdenzi practices at 427 S Marengo Ave Ste 5, Pasadena, California, 91101-3134.

To schedule an appointment with John J Ferdenzi, please contact the office at 213-718-1422.

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