Mary Caroline Sonnier

LPCC | Mental Health Counselor


  401 S Wilcox St Ste 101, Castle Rock
     Colorado, 80104-1960
  720-370-3010    Maps & Directions
Mary Caroline Sonnier is a Castle Rock, Colorado based counselor who is specialized as Mental Health Counselor. Active license number of Mary Caroline Sonnier is LPCC.0024017 for Mental Health Counselor in Colorado. Her current practice location is 401 S Wilcox St Ste 101, Castle Rock. Patients can book an appointment with her at 720-370-3010.
Mary Caroline Sonnier is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.
Complete Profile:
Mary Caroline Sonnier 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: Mary Caroline Sonnier
Specialization: Mental Health Counselor
Gender:Female
Credentials: LPCC
Accepts Medicare Assignment:No
Practice Address:401 S Wilcox St Ste 101, Castle Rock,
Colorado, 80104-1960
Phone:720-370-3010
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: 1184573396
NPI Enumeration Date: 22 Jan, 2026
NPI Last Update On: 22 Jan, 2026

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mary Caroline Sonnier are as mentioned below.
License NumberSpecializationStateStatus
LPCC.0024017Mental Health Counselor ColoradoPrimary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 1557 W Fair Ave,
Littleton, Colorado
Zip: 80120-2643
Phone Number: 737-247-8005
Patients can reach Mary Caroline Sonnier at 401 S Wilcox St Ste 101, Castle Rock, Colorado or can call to book an appointment on 720-370-3010.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.