Addiction Therapist

Derrick Williams

1035 Market St, San Francisco, California, 94103-1600

About Derrick Williams

Derrick Williams is a therapist based in San Francisco, California who is specialized in Addiction (Substance Use Disorder) Counselor. His current practice location is 1035 Market St, San Francisco. Patients can reach him at 415-487-3000. Derrick Williams NPI number (Unique professional ID assigned by NPPES) is 1326731720.

Derrick Williams 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

Derrick Williams 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 Derrick Williams
Specialization Addiction (Substance Use Disorder) Counselor
Gender Male
Practice Address: 1035 Market St,
San Francisco, CA - 94103-1600

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 Number1326731720
NPI Enumeration Date: 31 May, 2023
NPI Last Update On: 31 May, 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 Derrick Williams are as mentioned below.

License NumberSpecializationStateStatus
Addiction (Substance Use Disorder) Counselor CaliforniaPrimary

Mailing Address

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

Derrick Williams
1405 Guerrero St,
San Francisco, CA - 94110-4324
Phone: 415-635-4411

Book an Appointment with Derrick Williams

To schedule an appointment, contact Derrick Williams at 1035 Market St, San Francisco, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Derrick Williams:

Derrick Williams 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, Derrick Williams is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Derrick Williams practices at 1035 Market St, San Francisco, California, 94103-1600.

To schedule an appointment with Derrick Williams, please contact the office at 415-487-3000.

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