Psychologist

Marvin Darnell Graddy

1320 Rockspring Way, Antioch, California, 94531-8397

About Marvin Darnell Graddy

Marvin Darnell Graddy is a psychologist based in Antioch, California who is specialized in Psychology. Active license number of Marvin Darnell Graddy is 101YA0400X for Addiction (Substance Use Disorder) Psychology in California. His current practice location is 1320 Rockspring Way, Antioch. Patients can contact him at 925-334-9906. Marvin Darnell Graddy NPI number (Unique professional ID assigned by NPPES) is 1144805011.

Marvin Darnell Graddy 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

Marvin Darnell Graddy'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 Marvin Darnell Graddy
Specialization Psychology
Gender Male
Practice Address: 1320 Rockspring Way,
Antioch, CA - 94531-8397

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 Number1144805011
NPI Enumeration Date: 12 Mar, 2021
NPI Last Update On: 12 Mar, 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 Marvin Darnell Graddy are as mentioned below.

License NumberSpecializationStateStatus
101YA0400XAddiction (Substance Use Disorder) Psychology CaliforniaPrimary
101YA0400XCounselor CaliforniaSecondary
101YA0400XCounselor CaliforniaSecondary

Other Medical Identifiers

Other professional identifiers associated with Marvin Darnell Graddy such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
5VE8-FC6-UP53MedicaidCalifornia

Mailing Address

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

Marvin Darnell Graddy
3707 Sunset Ln,
Antioch, CA - 94509-6101
Phone: 925-522-0124

Book an Appointment with Marvin Darnell Graddy

To schedule an appointment, contact Marvin Darnell Graddy at 1320 Rockspring Way, Antioch, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Marvin Darnell Graddy:

Marvin Darnell Graddy is a psychologist specializing in Addiction (Substance Use Disorder) Psychology. He help patients to develop ways to cope with their drug cravings. Also, he can suggest strategies to avoid drugs and prevent relapse, and can offer suggestions on how to deal with a relapse if it occurs. He make patients more aware of their feelings, thoughts and teach them different ways to deal with their problems.

Yes, Marvin Darnell Graddy 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.

Marvin Darnell Graddy practices at 1320 Rockspring Way, Antioch, California, 94531-8397.

To schedule an appointment with Marvin Darnell Graddy, please contact the office at 925-334-9906.

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