Mark Glenn Willoughby is a El Monte, California based counselor who is specialized as Addiction (Substance Use Disorder) Counselor. His current practice location is 3430 Cogswell Rd, El Monte. Patients can book an appointment with him at 626-453-3400.
Mark Glenn Willoughby 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.
Complete Profile:
Mark Glenn Willoughby speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
Name:
Mark Glenn Willoughby
Specialization:
Addiction (Substance Use Disorder) Counselor
Gender:
Male
Accepts Medicare Assignment:
No
Practice Address:
3430 Cogswell Rd, El Monte, California, 91732-2785
Phone:
626-453-3400
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 Number:
1174038756
NPI Enumeration Date:
05 Dec, 2017
NPI Last Update On:
05 Dec, 2017
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address:
3430 Cogswell Rd, El Monte, California
Zip:
91732-2785
Patients can reach Mark Glenn Willoughby at 3430 Cogswell Rd, El Monte, California or can call to book an appointment on 626-453-3400. *Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 June, 2025.