Dr. Ronald D Gellis

PH.D. | Addiction (Substance Use Disorder) Counselor


  25 Floramar, Rancho Santa Margarita
     California, 92688-1308
  949-533-6075    Maps & Directions
Dr. Ronald D Gellis is a Rancho Santa Margarita, California based counselor who is specialized as Addiction (Substance Use Disorder) Counselor. Active license number of Dr. Ronald D Gellis is PSY9191 for Clinical Neuropsychologist in California. His current practice location is 25 Floramar, Rancho Santa Margarita. Patients can book an appointment with him at 949-533-6075.
Dr. Ronald D Gellis 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:
Dr. Ronald D Gellis 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: Dr. Ronald D Gellis
Specialization: Addiction (Substance Use Disorder) Counselor
Gender:Male
Credentials: PH.D.
Accepts Medicare Assignment:No
Practice Address:25 Floramar, Rancho Santa Margarita,
California, 92688-1308
Phone:949-533-6075
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: 1891038352
NPI Enumeration Date: 03 Apr, 2013
NPI Last Update On: 09 Jun, 2020

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Ronald D Gellis are as mentioned below.
License NumberSpecializationStateStatus
PSY9191Clinical Neuropsychologist CaliforniaPrimary
PSY9191Addiction (Substance Use Disorder) Counselor CaliforniaSecondary
PSY9191Mental Health Counselor CaliforniaSecondary
PSY9191Professional Counselor CaliforniaSecondary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 25 Floramar,
Rancho Santa Margarita, California
Zip: 92688-1308
Phone Number: 949-533-6075
Patients can reach Dr. Ronald D Gellis at 25 Floramar, Rancho Santa Margarita, California or can call to book an appointment on 949-533-6075.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 July, 2025.

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