(631) 247-0976

Richard L. Marcus, D.D.S. & Associates
23 Southdown Road, Huntington, NY 11743

Richard L. Marcus, DDSEndodontist

Long Island endodontist Richard L. Marcus, DDS, has been helping people smile for almost 40 years. He earned his Doctor of Dental Surgery degree from University of Toronto in 1977, completed a general practice residence at Albert Einstein Hospital in Philadelphia in 1978, and received his certification in Endodontics from Temple University School of Dentistry in 1980.

Dr. Marcus specializes in root canal treatment including surgical and non-surgical root canal procedures and has appeared on “The Late Show” with David Letterman to demonstrate pain-free root canals. He is a member of the American Dental Association, American Association of Endodontists, and the Omicron Kappa Upsilon National Dental Honor Society. He is also a founding member of Dentists for a Better Huntington. Dr. Marcus has lectured in both the United States and in Canada about Cone Beam CT technology and radiographic diagnosis, and has published several articles on chronic pain management through nutrition manipulation.

“It is my hope that people who view a complete root canal will see that it’s a virtually pain-free procedure,” Dr. Marcus said. “I hope it will help to alleviate some of the fear and anxiety that keep patients from receiving the treatment they need to get out of pain and keep their natural teeth.”

Dr. Marcus and his wife live in Centerport, near their three grown children and grandchildren.

Dr. Marcus interview – Root Canal Treatment

Highlights from Dr. Marcus’ appearance on the David Letterman Show

Our patients leave smiling



From the moment you walk in the office your treated professionally and courteously. Dr. Marcus is clearly an expert in what he does and his personality helped squelch my fear. Great staff as well!

Glenn G.

Read more reviews



This is a wonderful office. Dr Marcus got to the root (just a small pun intended!) of two problems in the summer of 2015. He is an amazing endodontist and did everything he could to make me a pain free person.

Susan R.

Read more reviews



Best endodentist ever! Beautiful office, they make you feel so comfortable and Dr. Marcus did an amazing job on my root canal! Everything went smoothly and no pain after the procedure. Highly recommended.

Jackie C.

Read more reviews



Dr Marcus and his staff always go the extra mile and provide unparalleled medical care and service. He has been treating me for years and I can’t imagine going anywhere else. He is not only a skilled clinician but the nicest person you’ll ever meet. Would recommend him to all my friends and family.

Nora R.

Read more reviews



Very professional and courteous staff. Dr. Kapoor was wonderful. Highly skilled and very personable!

Virginia F.

Read more reviews



Dr. Marcus made my daughter’s root canal experience one that she will remember in a positive way. In fact, she laughed and smiled through the experience instead of having the fear that she usually has. Not only was Dr. Marcus amazing but his staff was as well. They spent an extra hour helping me through an insurance issue! I highly recommend using Dr. Marcus for your child or yourself!!

Linda B.

Read more reviews



Dr. Marcus is the absolute best endodontist around. He makes a root canal actually a pleasant experience! Great organized office as well… highly recommend!

Allison B.

Read more reviews



Dr. Marcus is amazing! When I needed emergency root canal over the Christmas holiday, he not only made sure to get me on the calendar immediately, but treated me as if I was one of his own patients. I live in Philadelphia and was told by my local dentist that I was SOL as they were closed for the holiday (without coverage). I’d tried calling several other oral surgeons, but none of them would se…

Greg E.

Read more reviews



Dr. Marcus patiently waited over an hour for me to get numb and took care of a badly infected tooth that had me in misery for three days. The pain is gone now and I have my tooth. Thanks a million, Dr. Marcus, to you and your staff!

Irma P.

Read more reviews



Dr Marcus is a consumate professional who always takes the time to fully explain all conditions and options available to you in a comprehensive and yet understandable manor. His professionalism, including his staff, are unequaled to any other office I have been to. I could not give a higher recommendation to any individual. Sincerely, John O’Brien

Ann M.

Read more reviews



I’ve had root canal treatments from three different endodontists, two of them being the main ones in Huntington. I know for sure that Dr. Marcus is by far your best choice. His office is very nice and comfortable and his front desk staff members are very nice. There’s a keurig coffee maker in the waiting room so I always have a nice cup of coffee while I’m waiting. He runs very close to on t…

Karen B.

Read more reviews



Completely competent, friendly and pain-free dentistry!!!!!

Thurston O.

Read more reviews



Dr. Marcus answered an emergency call I placed to my own dentist. He was on-call for the week-end and he took care of my problem in a kind and efficient manner. Thank you Dr. Marcus for being such a caring professional!❤️

Patricia P.

Read more reviews



I absolutely love the staff here , I called with an emergency at 10 pm and dr marcus called me back and offered to Open the office in order to help me get comfortable I think that is amazing service. The following morning he saw me at 645 am and the staff was so nice and understanding they really helped with the anxiety I was feeling.. The staff even followed up with me the following day. They jus…

Ashley T.

Read more reviews



Dr. Marcus is so kind, patient, and professional. You can’t find better care on Long Island. Highly recommended!!!!

Dave R.

Read more reviews



Dr Marcus and his staff are absolutely amazing. Needed to get my 8 year old daughter in for a broken tooth. They were more then accommodating. They were able to give me an appointment the same day. Dr Marcus made my daughter laugh and made her feel at ease. Absolutely wonderful doctor. The staff from the front desk girls to the MA were amazing. Highly recommend this office.

Christy L.

Read more reviews



Excellent, fast. Great experience!

Tracey V.

Read more reviews



Dr. Marcus patiently waited over an hour for me to get numb and took care of a badly infected tooth that had me in misery for three days. The pain is gone now and I have my tooth. Thanks a million, Dr. Marcus, to you and your staff!

Irma P.

Read more reviews



Dr. Marcus is the best doctor I have ever visited hands down. He was so attentive and helped me to locate the pain that no other dentist could. I tell all my friends and family to go to him – 100% the best!

Anonymous

Read more reviews



Wow!! I was so nervous coming to the Endo dentist for my first time. This Endo dentist and office staff made me feel comfortable, relaxed, and the awesome staff answered any questions I had….I would definitely recommend this Endo dentist to anyone!! My pain is gone

Kerri K.

Read more reviews

Request an appointment today

Call our office at (631) 247-0976

Request an Appointment Online

Site Navigation

Office Hours

  • Monday
    6:30 AM – 7:00 PM
  • Tuesday
    6:30 AM – 7:00 PM
  • Wednesday
    6:30 AM – 7:00 PM
  • Thursday
    6:30 AM – 7:00 PM
  • Friday
    6:30 AM – 6:00 PM
  • Saturday
    8:00 AM – 4:00 PM
  • Sunday
    Closed

Appointment request

New patients are welcome! To request an appointment use our online form or call:

(631) 247-0976

Our Location

Richard L. Marcus, D.D.S. & Associates

23 Southdown Road, Huntington, NY 11743

(631) 247-0976