Addiction Therapist

Jennifer Dethlefsen

916 N Mountain Ave, Suite A, Upland, California, 91786-3697

About Jennifer Dethlefsen

Jennifer Dethlefsen is a therapist based in Upland, California who is specialized in Addiction (Substance Use Disorder) Counselor. Her current practice location is 916 N Mountain Ave, Suite A, Upland. Patients can reach her at 909-932-1069 or can fax her at 909-932-1087. Jennifer Dethlefsen NPI number (Unique professional ID assigned by NPPES) is 1861808628.

Jennifer Dethlefsen 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

Jennifer Dethlefsen 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 Jennifer Dethlefsen
Specialization Addiction (Substance Use Disorder) Counselor
Gender Female
Practice Address: 916 N Mountain Ave, Suite A
Upland, CA - 91786-3697
Fax 909-932-1087

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 Number1861808628
NPI Enumeration Date: 01 Jul, 2014
NPI Last Update On: 01 Jul, 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 Jennifer Dethlefsen 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.

Jennifer Dethlefsen
916 N Mountain Ave, Suite A
Upland, CA - 91786-3697
Phone: 909-932-1069
Fax: 909-932-1087

Book an Appointment with Jennifer Dethlefsen

To schedule an appointment, contact Jennifer Dethlefsen at 916 N Mountain Ave, Suite A, Upland, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Jennifer Dethlefsen:

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

Jennifer Dethlefsen practices at 916 N Mountain Ave, Suite A, Upland, California, 91786-3697.

To schedule an appointment with Jennifer Dethlefsen, please contact the office at 909-932-1069.

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