Kahn, Ferrari And Aldieri Dentistry
Donald Kahn, DDS:
Practice Profile Page


Kahn, Ferrari And Aldieri Dentistry
Donald Kahn, DDS
Farmingdale, NY













A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 9:00 am to 6:00 pm

Tuesday: 9:00 am to 8:00 pm

Wednesday: 9:00 am to 8:00 pm

Thursday: 9:00 am to 5:00 pm

Friday: 8:00 am to 5:00 pm

Saturday: 8:00 am to 1:00 pm

Sunday: Closed





Check out what some of our happy patients are saying about us:

Samantha V. from Farmingdale, NY (Source: Yelp)


I have been coming to KFA Dental for a really long time and every visit here has been amazing. Dr. Kahn, Dr. Ferrari, and Dr. Aldieri are the best out there and the rest of the staff as well. They all make me feel super comfortable and make sure that I’m always in good hands. The office Is always extremely clean and put together. Everyone working in KFA Dental knows exactly what they are doing so I have a lot of trust in them when they are working on my teeth. They always make sure the patient comes first and that they are always more than happy with their results. Thank you KFA Dental, your the best

Kelly Kelz (Source: Facebook)


I must say KFA Dental is the best, the doctors provide the best care for their patient’s. High quality care with High end technology. I was seen in their office and I must say, I have never experienced an exam and cleaning as KFA offers, the thoroughness that the doctors and hygienist provide are amazing. The staff is very professional, the care that they provide their patients are top notch.. If you want a great Dentist; look no further! KFA DENTAL is the place to go ♥️

Drew A. from Upper East Side, Manhattan, NY (Source: Yelp)


Fast, friendly and thorough, these are still the best docs around! Came in for a cleaning (all the way from Vegas) because I don’t trust anyone else to clean this mouf. Seriously though, 5 years after my first visit, KFA is still miles ahead of other dental offices. Don’t stay with your doc bc ‘he’s known you since you were a kid’ and don’t be the ‘I hate the dentist’ guy. Come here, get your cleaning on and walk out with a smile. So simple. Derp. Pro tip: come on a Monday and watch Sportcenter (yes, there are TVs above the chairs). You’ll be caught up on all the NFL scores and you won’t have dragon breath anymore. Win.

Matt D. from Bellmore, NY (Source: Yelp)


I have been going to KFA for several years now and am very appreciative and thankful for their expertise and professionalism. The staff is extremely well trained and knowledgeable in their respective duties. The doctors are excellent and always put the patient first when deciding upon a course of corrective action. I wholeheartedly recommend KFA for anyone who has ever had a “fear” of dentists. Not only are they exceptional at their skill, they are all people persons.

Cortney C. from Massapequa, NY (Source: Yelp)


KFA is the best of the best!  I will never go to another dentist again after having been there.  Everyone is so nice, knowledgeable and thorough.  They really care about the quality of service they provide and go out of their way to make you feel happy and comfortable.  I was very impressed!  Their office is clean, inviting and state of the art.

DisVet-1AD (Source: Google)


It’s not very often that I find myself so thoroughly impressed by a particular product, service, individual, or professional that I am compelled to craft a review. However, in this case, I am, and it’s not the platinum level of service from a staff that executes each of their roles with the instinct of a seasoned military unit and the precision of a Swiss watch which I found myself receiving. Nor was it the flawless care which I had received, utilizing state of the art equipment and bleeding-edge technology. It was the level of humanity that was provided by Dr. Kahn and his staff that led me to pen this review. I am a disabled US Military Veteran and after years of improper dental care in the military, I was denied dental care by the VA, which resulted in a futile struggle over several years. Things had degraded to a point where I wasn’t even able to eat, not to mention my overall self-esteem. Ultimately, my condition had degraded to such a point where I now required tens of thousands of dollars in dental work. My wife and I then went to an evaluation at Dr. Scharf’s office. It was at Dr. Scharf’s office where I fully understood the cost of what I required, which was to have my remaining teeth pulled and implants put in. The total for everything rapidly approached six figures, something that just compounded the issue. However, then Dr. Scharf reached out to Dr. Kahn with an Idea that would change my life forever. Dr. Kahn and Dr. Scharf volunteered to donate all of their time and services to me free of charge. Then just like that, I was reduced to tears all but collapsing into his arms. What do you say to someone who possesses that level of humanity? Someone who has a patient with a bill that is easily more than $90,000 and says, “Don’t worry about it, we’ll take care of it”. This man spent dozens of hours not only performing the dental work but also working the logistics of the entire process, including dealing with multiple laboratories in different states and time zones. We are talking about a different kind of human being here with these two doctors and their staff. Their gracious gift has driven me to live a more fulfilling life. TLDR: If you won $500 million and were able to afford concierge dental care Robin Leech Style this is what it would look like and they have a heart of gold. *Note – I had posted this review three years ago but it did not successfully publish.

Adrienne Frodella (Source: Facebook)


What a remarkable group! Each and every one in this practice is professional and knowledgeable. My husband and small children are also patients and we can’t say enough on how much we love them. My kids look forward to dental visits. I’ve had restorative front work done and it still looks so great 10 plus years later. I can’t recommend them enough.

Cathy V. from Massapequa, NY (Source: Yelp)


I had the best experience at KFA DENTAL. I never experience anything like this. I was given a tour of the office and the entire staff was friendly and helpful. They have two late nights and Saturday which I find very helpful. The doctors and Hygienist were caring and made me feel as if I was apart of their family. I wish all of my other doctor offices were as great as my dentist!

Kelvin T. from Rocky Point, NY (Source: Yelp)


I just left KFA Dental for my first visit.  I was told that my first consultation would cost $299.00, which if you have insurance should cover most of the cost.  I learn about KFA dental from the radio station 106.1 long island.  I have not received my second consultation, but I am really looking forward.  The x-rays, pictures and explanation to your teeth is an experience I have never had at a dental office before, will not mention a name, but I will mention mine.  My name is K. Tune and I am looking forward to my upper and lower front bridges replace by KFA Dental.  Yes! the price is expensive, you get what you pay for and dental insurance is the wors

Emily Parsons (Source: Facebook)


I’ve worked with a lot of doctors, I’ve seen a lot of things. 5 star service inside and out. They actually care about patients!! YOU WILL NOT FIND BETTER CARING DOCTORS! They provide you with the best of the best equipment and products! Yes! Our chairs have MASSAGERS!

Donavan E. from Deer Park, NY (Source: Yelp)


This dentist office have been taking care of me for months and they do wonderful work…..aside from the staff being very friendly the the doctors seem to really care for you. They also make sure they do the best they can to make the work painless. I personally hate coming to the dentist  (aside from the workers who does) but they make it not so bad…..if you have dental definitely get down to this place they are so worth it….only thing is if your paying out of pocket….you will be paying like for real

Joseph L. from Griffith Park/Los Feliz, Los Angeles, CA (Source: Yelp)


I went to KFA Dental two weeks ago for a cleaning & a check up. I don’t like going to the dentist. And admittedly, I haven’t gone in years. Despite my negative feelings, the second I walked into the office, an immediate question popped itself in my brain, “Is this the Disney World of dentistry?” (And I’ve been to Disney 7 times as a kid so I know what I’m talking about and have every right to question it.) The place is immaculate from top to bottom. The waiting area is spacious, comfortable and decorative. The staff were courteous, respectful & extremely helpful. They also had bright smiles themselves, which is a good sign in my opinion. After a very short wait I met with Debbie, who informed me clearly of who she was (the hygienist), what she cares about (my well being) and how she plans to proceed. As she worked, she chatted me up, and I found our conversation to be very calming, since my nerves, in general, are rather high-strung. She was sensitive to my sensitivities as she cleaned my mouth out with various instruments I can’t name, and I appreciated it. After Debbie took X-Rays, using what looked like even more impressive, dental technologies from the future, Dr. Aldieri popped in, and we discussed my teeth. He checked for cavities; thankfully I didn’t have any, and he explained what he was analyzing via Debbie’s X-Rays. I really appreciate when not only dentists, but PEOPLE explain WHY they do, and HOW they do, instead of just…DO. Debbie did this & so did Dr. Aldieri. This makes me appreciate the work, and in this instance, my own mouth even more! Dr. Aldieri is funny, charming, articulate, experienced and extremely skilled; not only in his own method, but whom he hires to be on his team. I also have the pleasure of knowing Dr. Ferrari from a previous visit, and she is just as caring and proficient as he. She glows as she works, and this is a sign of true passion for one’s profession. I’ve met Dr.Kahn in the past, and he’s a cool dude too, smart & professional. I left the office within a flurry of humble thank you’s and pleasantries among the staff, along with a whitening kit, new tooth brush & other goodies. In the parking lot, the question returned to my head, “Is KFA Dental the Disney World of Dentistry?” The answer: NO. KFA Dental is beyond Disney. KFA is too skilled & care too much about their customers to be labeled “Disneyesque.” KFA operates in a world of it’s own. And that’s the world I wanna be in. It has it’s own signature. And that’s the sign of good business with a great product. I never left Disney with a bigger smile than the one I had on my face in KFA’s parking lot. (Well, maybe the little kid in me did, but as an adult…it’s been awhile since I’ve smiled quite like that.) And I didn’t see any automated pirates either…they DO have an xbox in the waiting room though… Anyway, thanks for the smile guys! It means everything.