We are open - safety is our top priority!
Thank you for choosing us to provide your patients with optimal care. We are proud to be a preferred partner of many of the local Huntington general dentists and pediatric dentists on Long Island. We value our relationship, and will provide you with detailed case reports.
At our office on Southdown Road, we provide advanced technology and comprehensive diagnosis and care. The advantages of implant placement by a periodontist include superior soft tissue management, thoughtful implant placement, immediate placement and immediate load when appropriate, as well as comprehensive oral assessment and treatment planning, when needed and appropriate.
We take pride in providing strong communication between our office and yours, and patients will be referred back to you for their hygiene and restorative needs.
Please call our office at (631) 247-0976 or use the form below to refer patients to us and note any treatment plan reinforcement opportunities. Our team will follow up with you to receive any additional documentation that is needed.
Request Online Now
Complete the form below to request your appointment today.
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
CareCredit

CareCredit is a healthcare credit card designed for your health and wellness needs. Pay for the costs of many treatments and procedures through convenient monthly payments.
Our patients leave smiling
Dr. Kapoor is excellent. She is professional and compassionate The office is immaculate. I highly recommend her. The office manager and office help are pleasant and extremely helpful. I couldn’t ask for more.
Gaiil G.
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.
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.
Excellent, fast. Great experience!
Tracey V.
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.
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.
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.
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.
I have been a patient of Rick Marcus for a number of years and have always found him to be outstanding. He works practically without any discomfort with root canals and is always using the latest proven techniques. He is highly skilled and has a perfect touch. Today I had a periodontal cleaning with a new hygienist named Julie and that too was an excellent experience. This is an office that consis…
Michael G.
Very professional and courteous staff. Dr. Kapoor was wonderful. Highly skilled and very personable!
Virginia F.
Completely competent, friendly and pain-free dentistry!!!!!
Thurston O.
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.
Could not say enough about how professional both Dr. Marcus and his staff are. I had a pretty painful tooth issue that my normal dentist immediately assessed would need a root canal back in April. I quickly made an appointment with Dr. Marcus. I was treated amazingly by both the staff setting me up, the assistant in the room helping Dr . Marcus and most importantly, the skill and compassion from D…
Mark H.
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.
Dr. Marcus is so kind, patient, and professional. You can’t find better care on Long Island. Highly recommended!!!!
Dave R.
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.
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.
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.
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.
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…
Karen B.
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.
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
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 woul…
Greg E.