Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc

4.9
464 reviews

About

DentistOral SurgeryPeriodonticsCosmetic DentistryDenture SpecialistTeeth Whitening ServiceDental Implants PeriodontistryOrthodonticsEndodonticsProsthodontics
At Dr. Kosta's dental office, Konstantinos Proussaefs DDS Inc, we love helping our patients discover a healthy, beautiful smile.

Details

  • Wheelchair accessible restroomAvailable

Location

Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc
1445 E Los Angeles Ave, Simi Valley, CA
93065, United States

Reviews

4.9
464 reviews
5 stars
446
4 stars
13
3 stars
1
2 stars
1
1 star
3

What are people saying?

AI-generated from recent customer reviews

Staff Professionalism

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.