Addiction Therapist

Mr. Leonard Clark, CERTIFIED ALCOHOL &

4134 N. Vancouver Ave., Suite 303c, Portland, Oregon, 97217-2900

About Mr. Leonard Clark

Mr. Leonard Clark is a therapist based in Portland, Oregon who is specialized in Addiction (Substance Use Disorder) Counselor. His current practice location is 4134 N. Vancouver Ave., Suite 303c, Portland. Patients can reach him at 503-593-7764. Mr. Leonard Clark is CERTIFIED ALCOHOL & in Addiction (Substance Use Disorder) Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1518226216.

Mr. Leonard Clark is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. He helps his clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Practice Information

Mr. Leonard Clark 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. Leonard Clark
Specialization Addiction (Substance Use Disorder) Counselor
Credentials CERTIFIED ALCOHOL &
Gender Male
Practice Address: 4134 N. Vancouver Ave., Suite 303c,
Portland, OR - 97217-2900

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 Number1518226216
NPI Enumeration Date: 15 May, 2012
NPI Last Update On: 15 May, 2012

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. Leonard Clark are as mentioned below.

License NumberSpecializationStateStatus
Addiction (Substance Use Disorder) Counselor OregonPrimary

Other Medical Identifiers

Other legacy medical identifiers associated with Mr. Leonard Clark such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
06-R-06OtherOregonCADC II

Mailing Address

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

Mr. Leonard Clark
Po Box 11629, 4134 N. Vancouver Ave., Suite 303c
Portland, OR - 97217-2900
Phone: 503-593-7764

Book an Appointment with Mr. Leonard Clark

To schedule an appointment, contact Mr. Leonard Clark at 4134 N. Vancouver Ave., Suite 303c, Portland, Oregon or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. Leonard Clark:

Leonard Clark is a therapist specializing in Addiction (Substance Use Disorder) Counselor. He is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. He helps his clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Yes, Leonard Clark is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Leonard Clark practices at 4134 N. Vancouver Ave., Suite 303c, Portland, Oregon, 97217-2900.

To schedule an appointment with Leonard Clark, please contact the office at 503-593-7764.

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