Addiction Therapist

Diana L Lessley, RADT

2751 Napa Valley Corporate Dr, Napa, California, 94558-6216

About Diana L Lessley

Diana L Lessley is a therapist based in Napa, California who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Diana L Lessley is R1420550221 for Addiction (Substance Use Disorder) Counselor in California. Her current practice location is 2751 Napa Valley Corporate Dr, Napa. Patients can reach her at 707-704-8299. Diana L Lessley is RADT in Addiction (Substance Use Disorder) Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1689337933.

Diana L Lessley 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

Diana L Lessley 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 Diana L Lessley
Specialization Addiction (Substance Use Disorder) Counselor
Credentials RADT
Gender Female
Practice Address: 2751 Napa Valley Corporate Dr,
Napa, CA - 94558-6216

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 Number1689337933
NPI Enumeration Date: 14 Oct, 2021
NPI Last Update On: 14 Oct, 2021

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 Diana L Lessley are as mentioned below.

License NumberSpecializationStateStatus
R1420550221Addiction (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.

Diana L Lessley
185 Kit Carson Way,
Vallejo, CA - 94589-1942
Phone: 707-704-8299

Book an Appointment with Diana L Lessley

To schedule an appointment, contact Diana L Lessley at 2751 Napa Valley Corporate Dr, Napa, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Diana L Lessley:

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

Diana L Lessley practices at 2751 Napa Valley Corporate Dr, Napa, California, 94558-6216.

To schedule an appointment with Diana L Lessley, please contact the office at 707-704-8299.

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