It is our goal to provide healthy smiles and pleasant dental experiences for all residents of Rancho Santa Margarita, CA and surrounding areas. Serving Rancho Santa Margarita, Mission Viejo, and Las Flores since 2021.
29941 Aventura, Suite B, Rancho Santa Margarita, CA 92688
Use it or lose it: most dental plans reset Dec 31. left.
Open Monday to Friday · 5.0 on Google (175 reviews)
World-class dental professionals dedicated to your oral health
General/Cosmetic Dentist
Dr. Michael Welcome
USC School of Dentistry graduate, 28+ years in RSM, proud father of 5 children
General Dentist
Dr. Eugene Chang
Columbia University DDS, Harvard implant training, Pinhole Surgical Technique® certified
General Dentist
Dr. Jethro Cha
Loma Linda University DDS and Fellow of the Academy of General Dentistry (FAGD). Known for his gentle touch and calm demeanor, even with anxious patients.
From routine cleanings to complete smile makeovers, we offer a full range of dental services
Employee Partner
Enjoy exclusive benefits including free whitening trays, $50 in-office credit, referral rewards, and priority scheduling.
$179 Cleaning, Exam & X-Ray
*For new patients without insurance and in the absence of periodontal disease. Payment must be made in cash.
Claim OfferFREE
$299 $599 value
5.0 on Google, 175 reviews.
Dr. Welcome and his staff are highly professional, courteous, kind, caring and deliver excellent results. I recently had four old crowns replaced and I am very pleased with the results.
Very kind and detailed dentist and dental assistant! You can tell he has year of experience!
Love this office! Everyone is friendly and the hygienist is so careful in her technique that regardless of my sensitive teeth/gums it never hurts.They are also efficient with checking in & out.
They made everything so easy beginning with setting up appointment. Attention to detail and communication are 10/10. Highly recommended and very happy with care!
I’ve been going to this Dental office for 20+ years and have always had a great experience. I especially like having my usual cleaning by their hygienist by the name of Haley😃
The Dentist, Hygienist and Receptionist are very awesome and friendly. Great work on cleaning and fixing teeth.
Christian is a skilled and very thorough dental hygienist. He did a great job and offered advice on everything from flossing, brushing and even toothpaste recommendations. I’ve never had such clean teeth! 😃
Loved Ashley and Dr. Welcome! Friendly staff and sweet Chelsea was able to make us quick appointments. Thanks so very much🩷
Great work, friendly staff. Had some filings redone and the came out better than the originals. Next appointment is booked
Quality care and persona attention. They make it as pleasant of an experience as possible. I highly recommend Mountainside Dental.
Dedicated professionals ensuring your comfort and care
Alex
Practice Leader
Haley
Registered Dental Hygienist
Roya
Registered Dental Assistant
Experience dentistry in a state-of-the-art, welcoming environment
We accept most PPO insurance plans and offer flexible payment options
We accept most PPO plans. No HMO plans accepted.
We accept multiple forms of payment:
Insurance and financingThe Rancho Santa Margarita membership plan covers cleanings, exams and X-rays for one monthly fee, from $36 a month for adults.
29941 Aventura, Suite B
Rancho Santa Margarita, CA 92688
| Monday | 8:00 AM - 5:00 PM |
|---|---|
| Tuesday | 8:00 AM - 5:00 PM |
| Wednesday | 8:00 AM - 5:00 PM |
| Thursday | 8:00 AM - 5:00 PM |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Yes. We welcome new patients at our Rancho Santa Margarita office. Call 949-368-0193 or use the appointment form on this page to get started.
We accept most PPO plans and no HMO plans. Plans we work with include Aetna, Ameritas, BCBS, Cigna, Delta Dental, Guardian, Humana, MetLife, and United Healthcare. Call our RSM office to verify coverage for your specific plan.
Our RSM location is open Monday through Thursday from 8 AM to 5 PM. We are closed on Friday and weekends.
Yes. Emergency care is one of our services at the RSM office. Call us first thing in the morning at 949-368-0193 to ask about same-day availability for tooth pain, broken teeth, or other urgent issues.
Yes. Invisalign is listed in our specialty orthodontics services at the RSM office. Call to schedule an Invisalign consultation.
Yes. Dental implants are among our restorative services at the RSM office.
We are at 29941 Aventura, Suite B, Rancho Santa Margarita, CA 92688. Free patient parking is available and the office is wheelchair accessible.
We accept cash, checks, credit cards, and financing through CareCredit, Cherry and Sunbit. CareCredit has no-interest promotions if you pay in full on time, and Cherry has 0% APR plans for patients who qualify.
Yes. Our Kleer-powered Mountainside Dental Savings Plan at the RSM office is available for patients without dental insurance, with current pricing on our membership plans page. It includes two professional cleanings, two exams, routine x-rays, one emergency exam per year, and 10% off other procedures. A Perio plan for gum disease is also available. Enroll at kleer.com using code HB4N.
You can book online through our appointment scheduler, call the RSM office at 949-368-0193, or submit the appointment request form on this page.
Booking online takes about a minute. Or call 949-368-0193 and the front desk will sort out the rest.
