Addiction Therapist

Sean Terwilliger

1523 Longbranch Ave, Grover Beach, California, 93433-2508

About Sean Terwilliger

Sean Terwilliger is a therapist based in Grover Beach, California who is specialized in Addiction (Substance Use Disorder) Counselor. His current practice location is 1523 Longbranch Ave, Grover Beach. Patients can reach him at 805-473-7006. Sean Terwilliger NPI number (Unique professional ID assigned by NPPES) is 1700713641.

Sean Terwilliger 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

Sean Terwilliger 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 Sean Terwilliger
Specialization Addiction (Substance Use Disorder) Counselor
Gender Male
Practice Address: 1523 Longbranch Ave,
Grover Beach, CA - 93433-2508

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 Number1700713641
NPI Enumeration Date: 05 May, 2026
NPI Last Update On: 05 May, 2026

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 Sean Terwilliger 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.

Sean Terwilliger
110 Kern Ave,
Morro Bay, CA - 93442-2807

Book an Appointment with Sean Terwilliger

To schedule an appointment, contact Sean Terwilliger at 1523 Longbranch Ave, Grover Beach, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Sean Terwilliger:

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

Sean Terwilliger practices at 1523 Longbranch Ave, Grover Beach, California, 93433-2508.

To schedule an appointment with Sean Terwilliger, please contact the office at 805-473-7006.

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