Addiction Therapist

Teresa Massingill

7000b S Center Dr, Clearlake, California, 95422-8131

About Teresa Massingill

Teresa Massingill is a therapist based in Clearlake, California who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Teresa Massingill is RI-M1311251251 for Addiction (Substance Use Disorder) Counselor in California. Her current practice location is 7000b S Center Dr, Clearlake. Patients can reach her at 707-994-6494 or can fax her at 707-994-7164. Teresa Massingill NPI number (Unique professional ID assigned by NPPES) is 1154748820.

Teresa Massingill 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

Teresa Massingill 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 Teresa Massingill
Specialization Addiction (Substance Use Disorder) Counselor
Gender Female
Practice Address: 7000b S Center Dr,
Clearlake, CA - 95422-8131
Fax 707-994-7164

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 Number1154748820
NPI Enumeration Date: 19 Mar, 2014
NPI Last Update On: 19 Mar, 2014

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 Teresa Massingill are as mentioned below.

License NumberSpecializationStateStatus
RI-M1311251251Addiction (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.

Teresa Massingill
7000b S Center Dr,
Clearlake, CA - 95422-8131
Phone: 707-994-6494
Fax: 707-994-7164

Book an Appointment with Teresa Massingill

To schedule an appointment, contact Teresa Massingill at 7000b S Center Dr, Clearlake, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Teresa Massingill:

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

Teresa Massingill practices at 7000b S Center Dr, Clearlake, California, 95422-8131.

To schedule an appointment with Teresa Massingill, please contact the office at 707-994-6494.

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