Psychology Clinic | Clinical Psychology

John D. Sawyer, Phd

680 Langsdorf Dr, Suite 219, Fullerton, California, 92831-3702

About John D. Sawyer, Phd

John D. Sawyer, Phd is a psychology clinic located in Fullerton, California. specializing in Clinical Psychology. The clinic is located at 680 Langsdorf Dr, Suite 219, Fullerton, CA and can be reached at 714-871-9732. The authorized official for John D. Sawyer, Phd is Dr. Alison Nathan, who serves the clinic’s Clinical Psychologist. He/She can be contacted at 714-871-9732. The clinic’s primary license number in California is PSY 11021 (Clinical) .
John D. Sawyer, Phd Clinic has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Clinic Information

John D. Sawyer, Phd Clinic's specialty, address, contact phone number and fax are as below. Patients can contact the clinic at the given phone number for appointments.

Clinic Name John D. Sawyer, Phd
Specialization Clinical Psychology
Practice Address 680 Langsdorf Dr, Suite 219
Fullerton, CA - 92831-3702
Fax 714-871-4561

Authorized/Official Person Profile

Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.

Name Dr. Alison Nathan
Position Clinical Psychologist
Contact Number 714-871-9732

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 Number1649462276
NPI Enumeration Date: 17 Aug, 2007
NPI Last Update On: 17 Aug, 2007

Medical Licenses

Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for John D. Sawyer, Phd are as mentioned below.
License NumberSpecializationStateStatus
PSY 11021Clinical 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 D. Sawyer, Phd
680 Langsdorf Dr, Suite 219
Fullerton, CA - 92831-3702
Phone: 714-871-9732
Fax: 714-871-4561

Book an Appointment with John D. Sawyer, Phd

To schedule an appointment, contact John D. Sawyer, Phd at 680 Langsdorf Dr, Suite 219, Fullerton, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about John D. Sawyer, Phd clinic:

John D. Sawyer, Phd is a psychology clinic specializing in Clinical Psychology.

John D. Sawyer, Phd is located at 680 Langsdorf Dr, Suite 219, Fullerton, California 92831-3702.

Patients can contact John D. Sawyer, Phd at 714-871-9732 for inquiries about its services and appointments.

Please contact John D. Sawyer, Phd directly to inquire about new-patient availability and appointment options.
* Availability may change.

John D. Sawyer, Phd has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Patients can contact John D. Sawyer, Phd at 714-871-9732 to inquire about appointments, consultation requirements and available services.

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