Addiction Therapist

Margaret Sidun

2251 Palm Ave, San Mateo, California, 94403-1814

About Margaret Sidun

Margaret Sidun is a therapist based in San Mateo, California who is specialized in Addiction (Substance Use Disorder) Counselor. Her current practice location is 2251 Palm Ave, San Mateo. Patients can reach her at 650-513-6500. Margaret Sidun NPI number (Unique professional ID assigned by NPPES) is 1962209270.

Margaret Sidun 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

Margaret Sidun 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 Margaret Sidun
Specialization Addiction (Substance Use Disorder) Counselor
Gender Female
Practice Address: 2251 Palm Ave,
San Mateo, CA - 94403-1814

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 Number1962209270
NPI Enumeration Date: 26 Feb, 2025
NPI Last Update On: 26 Feb, 2025

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 Margaret Sidun are as mentioned below.

License NumberSpecializationStateStatus
Addiction (Substance Use Disorder) Counselor Primary

Mailing Address

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

Margaret Sidun
211 Irving St,
San Mateo, CA - 94402-2221
Phone: 650-705-7592

Book an Appointment with Margaret Sidun

To schedule an appointment, contact Margaret Sidun at 2251 Palm Ave, San Mateo, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Margaret Sidun:

Margaret Sidun is a therapist specializing in Addiction (Substance Use Disorder) Counselor. She 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.

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

Margaret Sidun practices at 2251 Palm Ave, San Mateo, California, 94403-1814.

To schedule an appointment with Margaret Sidun, please contact the office at 650-513-6500.

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