John T. Grbic, DMD

Accepting New Patients
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Dr. Grbic is Professor of Dental Medicine at the Columbia University Medical Center and the Director of the Division of Foundational Sciences at the Columbia University College of Dental Medicine. He was Director of the Center for Clinical Research in Dentistry from 1998-2012. Dr. Grbic received his Doctor of Dental Medicine (D.M.D.) degree from Fairleigh Dickinson University School of Dentistry, and a Master of Medical Science (M.M.Sc.) degree from Harvard University. He also received his certificate of specialty training in Periodontology from the Harvard School of Dental Medicine, and was a Research Fellow in Surgery in the Laboratory of Surgical Immunology at the Brigham and Women’s Hospital/Harvard Medical School. Dr. Grbic is an attending at New York Presbyterian Hospital.

Dr. Grbic has been an investigator on a number of research projects funded by industry and the National Institutes of Health, and has published over 60 papers or book chapters. His research has been in the areas of oral diagnostics and the pharmacotherapeutic management of periodontal diseases as well as the relationship of oral diseases to systemic diseases including HIV infection, diabetes, and osteonecrosis of the jaw. His clinical practice includes non-surgical and surgical periodontics and implant surgery. Dr. Grbic is a Fellow of the American College of Dentists (FACD).

Academic Appointments

  • Professor of Dental Medicine at CUMC

Administrative Titles

  • Director, Division of Foundational Sciences, Columbia University College of Dental Medicine

Hospital Affiliations

  • NewYork-Presbyterian / Columbia University Irving Medical Center


  • Male

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Phone Appointments

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51 West 51st Street
Suite 350
New York, NY 10019
New Patient Appointments:

Insurance Accepted


  • Dental PPO


  • Columbia Employee Dental Plan


  • Traditional Medicare

Quality Health Management

  • Quality Health Management


  • Columbia Employee Dental Plan

World Trade Center Health Plan

  • World Trade Center Health Plan

*Please contact the provider’s office directly to verify that your particular insurance is accepted.

Credentials & Experience

Education & Training

  • Fairleigh Dickenson Dental School, NJ
  • Residency: Harvard Hospitals


My current research interests are: 1) Periodontal diagnostics particular saliva and gingival crevicular fluid (GCF) 2) Clinical trials of pharmacotherapeutic agents which affect periodontal disease 3) The relationship of systemic diseases (cardiovascular disease, diabetes) to periodontal disease.