Most customers praised the staff for being friendly, professional, and attentive to their needs.
Patient Comfort
Many reviews highlighted the gentle and caring approach of Dr. Kosta and his team, making patients feel comfortable during visits.
Efficiency
Customers appreciated the quick service, with minimal wait times and efficient appointment scheduling.
Honesty and Transparency
Dr. Kosta was commended for his honesty regarding treatment options, without pressuring patients into unnecessary procedures.
Positive Atmosphere
The office environment was described as welcoming and clean, contributing to a pleasant dental experience.
JD
Justin D
Nov 10, 2025
5.0
Dr. Kosta saved me from First Street dental. First Street consists of mostly people from LosAngeles and are part of a subsidiary there. They charged me thousands right before Xmas and broke the crown without telling me so I went home to find the damage. Dr. Kosta not only made a perfect crown but fixed their damage to the original tooth and I was in and out. Go here if you want the best.
GM
Gina Murillo
Nov 7, 2025
5.0
Dr Kosta and staff are excellent. Dr Kosta makes the process very easy and he is so sweet.
JO
Johnelle Opel
Nov 6, 2025
5.0
Got the second half of my crown done today, it looks great! Basically painless. Dr. Kosta is the best. Great team too!
NM
Nicole McAdam
Oct 22, 2025
5.0
Dr. Kosta and his entire staff are excellent. I hated going to the dentist before I was referred to him. I had waited years because of dental PTSD and was never judged, they were gentle, and I was made to feel comfortable being there. That was 3 years ago and I will never use another dentist. They also listen to your individual financial needs and will help you stick to your budget while still maintaining proper dental care. Go see him you won’t regret it!
IS
Ivan Sauer
Sep 16, 2025
1.0
Im very disappointed with the way I was treated by the receptionist today. I called to let the office know I was running late to my appointment, and instead of being understanding or offering solutions, she was extremely rude. She flat-out said “no,” refused to reschedule me, and never took the time to go over any other options.
What made this worse is the attitude she showed when it came to my military insurance. As a service member, I felt disrespected and dismissed—something I’ve never experienced at other dental offices. Professionalism and basic courtesy were completely lacking.
I truly value good dental care and respect the providers, but the way patients are treated at the front desk sets the tone for the entire office. Unfortunately, today’s experience left me feeling unwelcome and undervalued.
Frequently Asked Questions About Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc
What dental services does Dr. Kosta's Dental Office offer?
Dr. Kosta's Dental Office offers a range of dental services including dental cleanings, periodontics (deep cleanings), endodontics (root canal), oral surgery (tooth extraction), prosthodontics (dentures, full and partial), crowns, bridges, fillings, tooth whitening, and pediatric dentistry.
Where is Dr. Kosta's Dental Office located?
The office is located at 1445 E Los Angeles Ave, Suite 300, Simi Valley, CA 93065, USA.
What payment options are accepted at Dr. Kosta's Dental Office?
The office accepts American Express, Cash, Check, Discover, Financing, MasterCard, PayPal, Travelers Check, and Visa.
What languages are spoken at Dr. Kosta's Dental Office?
The dental office provides services in Greek and French, in addition to English.
Is Dr. Kosta's Dental Office wheelchair accessible?
Yes, the office has wheelchair accessible restrooms, but it does not have unisex restrooms.
Are there any special hours or service changes at Dr. Kosta's Dental Office due to COVID-19?
Yes, due to the Coronavirus Pandemic, Dr. Kosta is currently seeing emergency dental services only. Please call if you have a dental emergency.
With which professional dental associations is Dr. Kosta's Dental Office affiliated?
The office is associated with the American Dental Association, California Dental Association, and Santa Barbara and Ventura Dental Society.
What are some nearby legal services around Dr. Kosta's Dental Office?
Nearby legal services include Ibuado Law Group, Adrienne K Miller Attorney At Law, Erica Wise Law, Conexion Legal Hispana, and Mark Lucatorto Investigations, which could help patients requiring legal assistance close to their dental appointments.
Are there healthcare-related services near Dr. Kosta's Dental Office besides dentistry?
Yes, nearby health-related services include Dr. Heather Valinsky PI Chiro (chiropractor), Vitality and Wellness Center (chiropractor and naturopathic holistic care), Comfort Acupuncture, Bradley Chiropractic, and Aspen Treatment Centers for counseling and addiction treatment.
What convenient nearby services could patients use before or after their appointment at Dr. Kosta's Dental Office?
Patients can access a FedEx Drop Box for shipping needs, and there are several financial services nearby including U.S. Bank, US Bank, Simi Valley Investment Services, and LJR Tax, Financial and Insurance Services for banking or financial advising.