Psychologist

Gregory Diehl Crawford, PSY.D.

3350 Shelby St Ste 200, Ontario, California, 91764-5556

About Gregory Diehl Crawford

Gregory Diehl Crawford is a psychologist based in Ontario, California who is specialized in Psychology. Active license number of Gregory Diehl Crawford is PSY28640 for Psychology in California. His current practice location is 3350 Shelby St Ste 200, Ontario. Patients can contact him at 909-935-2385 or can fax him at 909-935-2685. Gregory Diehl Crawford, PSY.D., specializes in Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1427310937.

Gregory Diehl Crawford is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

Gregory Diehl Crawford'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 Gregory Diehl Crawford
Specialization Psychology
Credentials PSY.D.
Gender Male
Practice Address: 3350 Shelby St Ste 200,
Ontario, CA - 91764-5556
Fax 909-935-2685

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 Number1427310937
NPI Enumeration Date: 11 Jun, 2012
NPI Last Update On: 02 Apr, 2021

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 Gregory Diehl Crawford are as mentioned below.

License NumberSpecializationStateStatus
PSY28640Psychology CaliforniaPrimary
PSY28640General Psychology CaliforniaSecondary
28640Clinical 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.

Gregory Diehl Crawford
3350 Shelby St Ste 200,
Ontario, CA - 91764-5556
Phone: 909-935-2385
Fax: 909-935-2685

Book an Appointment with Gregory Diehl Crawford

To schedule an appointment, contact Gregory Diehl Crawford at 3350 Shelby St Ste 200, Ontario, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Gregory Diehl Crawford:

Gregory Diehl Crawford is a psychologist specializing in Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Yes, Gregory Diehl Crawford 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.

Gregory Diehl Crawford practices at 3350 Shelby St Ste 200, Ontario, California, 91764-5556.

To schedule an appointment with Gregory Diehl Crawford, please contact the office at 909-935-2385.

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