About Our Doctors
Meet Our World-Class Team of Dental Professionals

Passes Dental Care is a comprehensive dental practice in Great Neck, NY serving the surrounding communities of Manhasset, Kings Point, Saddle Rock, Thomaston, and North Hills. If you live, work, or go to school in any of these areas, we invite you to come into our office for a consultation. If you are a first time patient, please take a look at what you can expect when you first visit.

If you have ever been afraid of going to the dentist, you are not alone. Read some stories about some of our patients from the Hive who overcame their fear of going to the dentist and feel safe and comfortable at our practice. Read on to learn more about the individual doctors who will be taking care of you.

Harvey Passes, D.D.S.

Harvey Passes, D.D.S.

General Dentist

Dr. Passes is a dental renaissance man. How you ask? He has developed the clinical applications for one of the lasers in the dentistry field as well as pioneered treatment for dental phobia. Just see how some of our patients have overcome their fear of going to the dentist and joined The Hive!

Dr. Passes has been the North Shore community’s trusted cosmetic and general dentist since 1975 and always thinks outside the box with his solutions for challenges that patients face. He has presented technologically advanced treatment concepts to dentists throughout the world as well. You can even find him on Long Island’s Cablevision in one of his over 500 television shows that he has produced and hosted.

  • New York University College of Dentistry: Dr. Passes earned his doctor of dental surgery degree in 1974
  • Jamaica Hospital: He completed his certificates in their general practice residence and another in general dental anesthesia
  • Dr. Passes has also co-authored textbooks in dentistry (including Profiles in Dental Courage: How to Completely Overcome Your Fear of the Dentist)
  • Authored numerous articles in various dental journals

Demetrios Tsiokos, D.D.S.

Demetrios Tsiokos, D.D.S.


Dr. Tsiokos attended New York University where he earned his Masters of Science in General Dentistry and completed his post-graduate studies in Periodontics & Implantology.

He is currently a member of:

  • American Dental Association
  • American Academy of Periodontology
  • Academy of Osseointegration
  • New York State Dental Association
  • Northeast Periodontal Association
  • American Academy of Periodontology (Diplomat)

Periodontology and Implantology are ever-evolving which is why it is imperative to Dr. Tsiokos to stay abreast by attending numerous continuing education courses. He aspires to not only know as much as possible about periodontal disease, but to understand its causes as well. His continuous studying allows him to administer the most advanced treatments to our patients.

Anna Kwasnik, DDS

Anna Kwasnik, DDS

Dr. Anna Kwasnik is a passionate, gentle and caring dentist, with over 15 years of experience in various areas of the dental profession. She trained in the United  States and in Europe, and is very grateful to her family, mentors, and patients for this amazing professional journey.

Upon graduation as Doctor of Dental Surgery from New York University, Dr. Kwasnik was inducted to the prestigious National Dental Honor Society – OKU. She also holds Fellowship status in International Congress of Oral Implantologists (FICOI) and Academy of General Dentistry (FAGD).

Well grounded in traditional dental medicine and surgery, Dr. Kwasnik is committed to stay up to date with latest trends and technology and provide the highest quality care for her patients. Her extensive education and top notch clinical skills combined with a very helpful and down to earth attitude continue to award her high respect and recommendations from both patients and colleagues.

Adam Schiff, DDS

Dr. Adam Schiff is an avid chef, sports fan and lover of music. He and his wife enjoy traveling above all else.

After completing his undergraduate studies at Yeshiva University, Dr. Schiff graduated from New York University College of Dentistry with honors in head and neck anatomy and oral pathology. He then completed an additional year of rigorous training through a residency at Jamaica Hospital.

Dr. Schiff is constantly involved in continuing education programs to provide his patients with the most up-to-date care possible. He has returned to NYU on a part-time basis to seek advanced training in implantology and is pursuing a fellowship in the prestigious Academy of General Dentistry. Blessed with a warm sense of humor and an affable nature, he compliments Dr. Passes’ style of patient interaction.

Dr. Schiff currently holds membership in the following organizations:

  • American Dental Association
  • New York Dental Association
  • Nassau County Dental Society
  • Academy of General Dentistry

Contact Your Great Neck and Manhassett Dentists

If you are looking for dental implants, cosmetic dentistry, pediatric dentistry, snoring therapy, Invisalign, or general dental care, you have found the right office. We encourage you to schedule an appointment if it is time for your regular visit or you are experiencing any of these common problems. Feel free to contact us if you have any questions and we’d be more than happy to help.

Passes Dental Care Passes Dental Care Logo (516) 858-5921
415 Northern Blvd Great Neck NY 11021