Therapist

Mr. David Randall Marquis, COUNSELOR

128 E G St Ste 111, Colton, California, 92324-2943

About Mr. David Randall Marquis

Mr. David Randall Marquis is a therapist based in Colton, California who is specialized in Counselor. Active license number of Mr. David Randall Marquis is 360068AN for Counselor in California. His current practice location is 128 E G St Ste 111, Colton. Patients can reach him at 909-430-0923 or can fax him at 909-430-0923. Mr. David Randall Marquis is COUNSELOR in Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1518131580.

Mr. David Randall Marquis is a trained and licensed mental health professional who helps individuals, couples, or groups manage and overcome emotional, psychological, behavioral, or relationship challenges. He works with people dealing with anxiety, depression, mood disorders, trauma, post-traumatic stress disorder (PTSD), grief and loss etc. He support his clients by understanding their thoughts, emotions, and behaviors.

Practice Information

Mr. David Randall Marquis speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mr. David Randall Marquis
Specialization Counselor
Credentials COUNSELOR
Gender Male
Practice Address: 128 E G St Ste 111,
Colton, CA - 92324-2943
Fax 909-430-0923

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1518131580
NPI Enumeration Date: 21 Apr, 2008
NPI Last Update On: 21 Apr, 2008

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mr. David Randall Marquis are as mentioned below.

License NumberSpecializationStateStatus
360068ANCounselor CaliforniaPrimary

Other Medical Identifiers

Other legacy medical identifiers associated with Mr. David Randall Marquis such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
360068ANOtherCaliforniaMEDICAL

Mailing Address

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

Mr. David Randall Marquis
128 E G St Ste 111,
Colton, CA - 92324-2943
Phone: 909-430-0923
Fax: 909-430-0923

Book an Appointment with Mr. David Randall Marquis

To schedule an appointment, contact Mr. David Randall Marquis at 128 E G St Ste 111, Colton, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. David Randall Marquis:

David Randall Marquis is a therapist specializing in Counselor. He is a trained and licensed mental health professional who helps individuals, couples, or groups manage and overcome emotional, psychological, behavioral, or relationship challenges. He works with people dealing with anxiety, depression, mood disorders, trauma, post-traumatic stress disorder (PTSD), grief and loss etc. He support his clients by understanding their thoughts, emotions, and behaviors.

Yes, David Randall Marquis is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

David Randall Marquis practices at 128 E G St Ste 111, Colton, California, 92324-2943.

To schedule an appointment with David Randall Marquis, please contact the office at 909-430-0923.

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