Addiction Therapist

Colleen Williamson

3594 4th Ave, San Diego, California, 92103-4940

About Colleen Williamson

Colleen Williamson is a therapist based in San Diego, California who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Colleen Williamson is LPCC5984 for Professional Counselor in California. Her current practice location is 3594 4th Ave, San Diego. Patients can reach her at 619-296-1151. Colleen Williamson NPI number (Unique professional ID assigned by NPPES) is 1396101143.

Colleen Williamson is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her 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

Colleen Williamson 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 Colleen Williamson
Specialization Addiction (Substance Use Disorder) Counselor
Gender Female
Practice Address: 3594 4th Ave,
San Diego, CA - 92103-4940

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 Number1396101143
NPI Enumeration Date: 10 Jan, 2016
NPI Last Update On: 03 Oct, 2023

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 Colleen Williamson are as mentioned below.

License NumberSpecializationStateStatus
LPCC5984Professional Counselor CaliforniaPrimary
Addiction (Substance Use Disorder) Counselor Secondary

Mailing Address

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

Colleen Williamson
1400 N Johnson Ave, Suite 101
El Cajon, CA - 92020-1650
Phone: 619-442-0277
Fax: 619-442-1101

Book an Appointment with Colleen Williamson

To schedule an appointment, contact Colleen Williamson at 3594 4th Ave, San Diego, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Colleen Williamson:

Colleen Williamson is a therapist specializing in Professional Counselor. She is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. She uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

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

Colleen Williamson practices at 3594 4th Ave, San Diego, California, 92103-4940.

To schedule an appointment with Colleen Williamson, please contact the office at 619-296-1151.

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