Holly Dias

Mental Health Counselor


  9500 Haven Ave, Rancho Cucamonga
     California, 91730-5807
  877-522-7187    Maps & Directions
Holly Dias is a Rancho Cucamonga, California based counselor who is specialized as Mental Health Counselor. Active license number of Holly Dias is APCC18540 for Mental Health Counselor in California. Her current practice location is 9500 Haven Ave, Rancho Cucamonga. Patients can book an appointment with her at 877-522-7187.
Holly Dias 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:
Holly Dias 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: Holly Dias
Specialization: Mental Health Counselor
Gender:Female
Accepts Medicare Assignment:No
Practice Address:9500 Haven Ave, Rancho Cucamonga,
California, 91730-5807
Phone:877-522-7187
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: 1376161422
NPI Enumeration Date: 06 Jul, 2020
NPI Last Update On: 05 May, 2025

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Holly Dias are as mentioned below.
License NumberSpecializationStateStatus
APCC18540Mental Health Counselor CaliforniaPrimary
Mental Health Counselor Secondary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 9500 Haven Ave,
Rancho Cucamonga, California
Zip: 91730-5807
Phone Number: 877-522-7187
Patients can reach Holly Dias at 9500 Haven Ave, Rancho Cucamonga, California or can call to book an appointment on 877-522-7187.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 July, 2025.

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