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

Dr. Kosta · Dr. Konstantinos Proussaefs

4.9526 Google reviews

1445 E Los Angeles Ave #300, Simi Valley, CA 93065, United States · more dentists in Simi Valley

  • 526Google reviews
  • 1treatments on record
  • ♿wheelchair accessible

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

Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc sees patients in Simi Valley from its office at 1445 E Los Angeles Ave #300, Simi Valley, CA 93065. Dentists on record here include Dr. Kosta and Dr. Konstantinos Proussaefs. Patients have given it a 4.9 star average from 526 Google reviews. That ranks it 41st of 80 rated dentists in Simi Valley by rating, above the 4.8 area average.

Treatments on record include general dentistry. Listed opening hours are Monday to Friday 7 am to 4 pm, closed Saturday to Sunday. The entrance and facilities are listed as wheelchair accessible.

Compare it with the ranked list of Simi Valley dentists.

What patients say about Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc

With 526 reviews on Google and a 4.9 star average, Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc has enough of a track record to read the patterns in what patients write. The compliments that repeat are about friendly staff and gentle and painless care, and several people bring up clear explanations too.

Loyalty runs deep, with at least one reviewer who has been coming here for over 20 years. Several people write that their injections and cleanings simply did not hurt. More than one reviewer got seen the same day when something urgent came up. What reads through most clearly is trust: people come back, and they bring family members with them.

Friendly staffGentle and painless care

Summary written from recurring themes in public Google reviews, paraphrased rather than copied.

Recent Google reviews

May 2026
Dr. Kosta and his staff is always kind and compassionate. Today was a very hard day for me. I have a really bad infection in my jaw and no one would help with the pain and discomfort. Dr. Kosta saw me on an hours notice and addressed all my questions and concerns with kindness and compassion. I appreciate him very much.
via Google reviews
Jun 2026
Have been a patient at Dr. Kosta’s Dental practice for a number of years, as has my husband. I’ve referred friends to the practice with positive feedback. Dr. Kosta is really good, and his office staff & dental hygienists are very caring & professional.
via Google reviews
Jun 2026
I’m a new patient and and no waiting time. Prompt service with a nice staff. With a view.
via Google reviews

Read all 526 reviews on Google ↗

The dentists here

KO

Dr. Kosta

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

Headshots and bios are added by the practice. Claim this profile to add yours.

Treatments and typical costs

TreatmentTypical Los Angeles priceMore
General Dentistry$95 – $350Compare in Simi Valley

Ranges are typical Los Angeles fees before insurance, not Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc's own price list. Ask the office for a written estimate after your exam.

Accessibility and amenities

Accessibility

  • Has wheelchair-accessible car park
  • Has wheelchair-accessible toilet

From the practice's public Google business profile.

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

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

Patients rate Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc 4.9 stars across 526 public Google reviews, and the strength they mention most is friendly staff. Some reviewers have been patients here for over 20 years, which is usually the strongest signal an office gives. The ranked neighborhood list on this site shows how that compares to nearby offices.

What do patients complain about at Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc?

No single complaint repeats often enough in recent public reviews to call a pattern. As always, confirm pricing and insurance in writing before treatment so the paperwork matches the conversation.

What do patients say about Dr. Kosta at Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc?

Three of the 5 recent Google reviews we read mention Dr. Kosta by name, and all of them are positive. Patients single out a gentle touch, taking time to explain and skill and thoroughness. If you want to be seen by Dr. Kosta specifically, ask for them when you book.

Can Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc help with a dental emergency?

One of the 5 recent Google reviews we read describes urgent visits such as pain, a broken tooth or a same day appointment, and patients report being fitted in quickly. Call as early in the day as you can and describe the problem, since emergency slots are usually limited.

What are the staff like at Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc?

Four of the 5 recent Google reviews we read comment on the team, and every one of them is positive.

Where is Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc located?

Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc is at 1445 E Los Angeles Ave #300, Simi Valley, CA 93065, in Simi Valley. Use the map on this page for directions, and check parking or validation with the office when you book.

What are Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc's opening hours?

Listed hours are Monday to Friday 7 am to 4 pm, closed Saturday to Sunday. Hours can change around holidays, so call ahead before visiting.

What treatments does Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc offer, and what do they cost?

On record: general dentistry (typically $95 to $350 in Los Angeles). Actual fees depend on your case and coverage, so ask the office for a written estimate after an exam.

How do I book an appointment at Dr. Kosta's Dental Office, Konstantinos Proussaefs, DDS, Inc?

Call +1 805-526-8296 or book through the practice website linked on this page. Mention whether you are a new patient and if the visit is urgent, since many offices keep same day slots for emergencies.

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

Comparing a couple of nearby offices is the fastest way to sanity-check a treatment plan and a quote.

Keep exploring: General Dentistry in Simi Valley · all Simi Valley dentists