Addiction Therapist

Holly L Demarest, LAC

1231 N 29th St, Billings, Montana, 59101

About Holly L Demarest

Holly L Demarest is a therapist based in Billings, Montana who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Holly L Demarest is 1238 for Addiction (Substance Use Disorder) Counselor in Montana. Her current practice location is 1231 N 29th St, Billings. Patients can reach her at 406-248-3175 or can fax her at 406-248-3821. Holly L Demarest is LAC in Addiction (Substance Use Disorder) Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1275886269.

Holly L Demarest 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

Holly L Demarest 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 Holly L Demarest
Specialization Addiction (Substance Use Disorder) Counselor
Credentials LAC
Gender Female
Practice Address: 1231 N 29th St,
Billings, MT - 59101
Fax 406-248-3821

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 Number1275886269
NPI Enumeration Date: 16 Oct, 2012
NPI Last Update On: 16 Oct, 2012

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 Holly L Demarest are as mentioned below.

License NumberSpecializationStateStatus
1238Addiction (Substance Use Disorder) Counselor MontanaPrimary

Mailing Address

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

Holly L Demarest
1231 N 29th St,
Billings, MT - 59101
Phone: 406-248-3175
Fax: 406-248-3821

Book an Appointment with Holly L Demarest

To schedule an appointment, contact Holly L Demarest at 1231 N 29th St, Billings, Montana or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Holly L Demarest:

Holly L Demarest 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, Holly L Demarest is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Holly L Demarest practices at 1231 N 29th St, Billings, Montana, 59101.

To schedule an appointment with Holly L Demarest, please contact the office at 406-248-3175.

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