Addiction Therapist

Derwin Decker, CADC 1

3949 South 6th Street, Klamath Falls, Oregon, 97603-4746

About Derwin Decker

Derwin Decker is a therapist based in Klamath Falls, Oregon who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Derwin Decker is 95-04-35 for Addiction (Substance Use Disorder) Counselor in Oregon. His current practice location is 3949 South 6th Street, Klamath Falls. Patients can reach him at 541-882-1487 or can fax him at 541-882-1670. Derwin Decker is CADC 1 in Addiction (Substance Use Disorder) Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1619208337.

Derwin Decker 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

Derwin Decker 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 Derwin Decker
Specialization Addiction (Substance Use Disorder) Counselor
Credentials CADC 1
Gender Male
Practice Address: 3949 South 6th Street,
Klamath Falls, OR - 97603-4746
Fax 541-882-1670

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 Number1619208337
NPI Enumeration Date: 20 Jan, 2010
NPI Last Update On: 20 Jan, 2010

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 Derwin Decker are as mentioned below.

License NumberSpecializationStateStatus
95-04-35Addiction (Substance Use Disorder) Counselor OregonPrimary

Other Medical Identifiers

Other legacy medical identifiers associated with Derwin Decker such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
129861MedicaidOregon

Mailing Address

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

Derwin Decker
3949 South 6th Street,
Klamath Falls, OR - 97603-4746
Phone: 541-882-1487
Fax: 541-882-1670

Book an Appointment with Derwin Decker

To schedule an appointment, contact Derwin Decker at 3949 South 6th Street, Klamath Falls, Oregon or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Derwin Decker:

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

Derwin Decker practices at 3949 South 6th Street, Klamath Falls, Oregon, 97603-4746.

To schedule an appointment with Derwin Decker, please contact the office at 541-882-1487.

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