Dr. John C. Gengo, DDS
Call now
Call now
Website
Call
Dr. John C. Gengo, DDS
Dr. John C. Gengo, DDS has been providing the highest standard of dental services for his patients in Olean, NY and surrounding areas for 30 years. He and his team of licensed dental professionals use state-of-the-art materials and the latest techniques to meet all of your dental needs. You will be treated with professionalism, courtesy, and respect.

Our friendly and professional staff strives to ensure you have a pleasant experience every time you visit our office. We offer both general and cosmetic dental services, including teeth cleanings, dentures, root canals, crowns and bridges, dental implants, teeth whitening, veneers and more. You deserve the healthy and beautiful smile you have always wanted!
Services
Receiving regular teeth cleanings is essential to maintaining your dental and oral health. We recommend adults schedule a cleaning at least twice a year, no matter how thorough your at-home dental hygiene routine. During a cleaning, one of our hygienists will remove plaque, tartar and food buildup from the teeth.
Veneers are thin porcelain shells that are bonded onto the front of existing teeth. They are used to improve the appearance of your teeth, and can disguise misalignments, discolorations, gaps, chips and cracks. In order to place the veneers, Dr. Gengo will remove about a millimeter from the tooth's surface.
Dr. John C. Gengo DDS and his team have been providing professional, compassionate dental care for patients and families since 1989. We provide patients with a wide range of general and cosmetic treatments, to ensure that their smiles remain healthy and beautiful for a lifetime! Below is important information that tells you about your visit, and the staff that will be providing your dental care!.
Since 1989, Dr. John C. Gengo, DDS and his team have provided the families of Olean, NY and the surrounding areas with state-of-the-art dental care. We offer a wide range of both general and cosmetic services, including teeth cleanings, dental implants, teeth whitening and more, to ensure that you have a strong, healthy and beautiful smile.
Reviews (10)
Patricia Titus
Patricia Titus
Dec 14, 2021
Report
I was seen quickly (after I’d filled out the new patient paperwork), the staff and doctor were all very friendly and helpful, and was treated professionally by everyone. Very pleased.
Michelle Wilcox
Michelle Wilcox
Nov 24, 2021
Report
Great Dentist and staff—the hygienist I had is always so friendly and pleasant.
Terri Leven
Terri Leven
Nov 16, 2021
Report
Very good dental care, professionals and effective. Thank you for your great customer service.
Terri Leven
Kathy P.
Kathy P.
Nov 15, 2021
Report
I have been living between Atlanta, GA and Olean, NY for several years. A few weeks ago, I had my teeth cleaned and a filling replaced in Olean; I realized that Dr. Gengo is at the "top of his professional game." He knows exactly what he is doing. The work of the hygienist who cleaned my teeth was also excellent. The rates he charges are extremely low compared to city pricing. I saved enough to pay to fly home by having my teeth cleaned and a filling replaced by Dr. Gengo vs. having the same dental work performed in Atlanta.
Rosemary Ludden
Rosemary Ludden
Nov 07, 2021
Report
Dr. Is great! Does know exactly what he's doing. Im glad I chose him. And the office girls are also great along with the nurse. Thank you for helping me.
Rosemary Ludden
Fred Welch
Fred Welch
Nov 04, 2021
Report
Very friendly atmosphere, easy parking with no steps to enter, efficient staff very little waiting.
Jedidiah Ingalls
Jedidiah Ingalls
Oct 26, 2021
Report
Great friendly and knowledgeable staff...comfortable environment.. keeps my smile lookin good... keep it up yall
Sheila Aaron-Simmons
Sheila Aaron-Simmons
Sep 07, 2021
Report
Dr. Gengo's office probably contains some of the nicest people on the planet! It doesn't matter who you talk to, everybody is so personable and you can tell that they really love what they do. I highly recommend them!
Drew Vics
Drew Vics
Sep 03, 2021
Report
Anyways a great experience here. Friendly atmosphere and genuine people. Dr. Gengo doesn’t push unnecessary procedures or products, he’s a straight shooter. Informative and helpful if I have any questions. Cleanings are a breeze.
Donna Rice
Donna Rice
Jul 19, 2021
Report
Highly impressive practice. Well run and efficient. Very professional but most important a caring group of people. Came away confident we made the right choice.