Addiction Therapist

Jonathan Ryan Mah, RADT

159 Brentwood Dr, Grass Valley, California, 95945-5703

About Jonathan Ryan Mah

Jonathan Ryan Mah is a therapist based in Grass Valley, California who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Jonathan Ryan Mah is R1623720725 for Addiction (Substance Use Disorder) Counselor in California. His current practice location is 159 Brentwood Dr, Grass Valley. Patients can reach him at 530-273-9541. Jonathan Ryan Mah is RADT in Addiction (Substance Use Disorder) Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1124905484.

Jonathan Ryan Mah 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

Jonathan Ryan Mah 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 Jonathan Ryan Mah
Specialization Addiction (Substance Use Disorder) Counselor
Credentials RADT
Gender Male
Practice Address: 159 Brentwood Dr,
Grass Valley, CA - 95945-5703

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 Number1124905484
NPI Enumeration Date: 19 Aug, 2025
NPI Last Update On: 19 Aug, 2025

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 Jonathan Ryan Mah are as mentioned below.

License NumberSpecializationStateStatus
R1623720725Addiction (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.

Jonathan Ryan Mah
406 Sunrise Ave Ste 105,
Roseville, CA - 95661-4145

Book an Appointment with Jonathan Ryan Mah

To schedule an appointment, contact Jonathan Ryan Mah at 159 Brentwood Dr, Grass Valley, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Jonathan Ryan Mah:

Jonathan Ryan Mah 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, Jonathan Ryan Mah is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Jonathan Ryan Mah practices at 159 Brentwood Dr, Grass Valley, California, 95945-5703.

To schedule an appointment with Jonathan Ryan Mah, please contact the office at 530-273-9541.

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