Deborshi Roy, M.D. is an otolaryngologist at ENT & Sinus Center in Rancho Cucamonga, California. With seven years of practice experience, Dr. Roy specializes in ENT care and sinus surgery for adult patients.

Deborshi Roy, M.D. is an otolaryngologist at ENT & Sinus Center in Rancho Cucamonga, California. With seven years of practice experience, Dr. Roy specializes in ENT care and sinus surgery for adult patients.
Dr. Roy attended New York University, where he majored in English Literature while completing his pre-medical studies, graduating with honors. He went on to earn his medical degree from the State University of New York Downstate Medical School, also graduating with honors. Dr. Roy completed his surgical internship and residency in Otolaryngology – Head & Neck Surgery at Temple University Hospital in Philadelphia.
He further advanced his training under world-renowned facial plastic and reconstructive surgeon Devinder S. Mangat, M.D. in Cincinnati, Ohio. Dr. Roy is also a member of the American Academy of Otolaryngology – Head & Neck Surgery, the American Academy of Facial Plastic and Reconstructive Surgery, and the American Medical Association.
He has a special interest in nasal and sinus surgery. Using advanced techniques and technology, including Balloon Sinuplasty, Dr. Roy performs procedures in both the office and operating room settings.
In addition to patient care, Dr. Roy is actively involved in clinical research and has authored numerous peer-reviewed journal articles and medical textbook chapters.
Dr. Roy is committed to providing compassionate, patient-centered care with a strong focus on safety, comfort, and confidentiality. He works closely with each patient to develop personalized treatment plans tailored to their individual needs and goals while helping patients feel informed and confident throughout their care journey.
Dr. Roy provides comprehensive ENT and sinus care in Rancho Cucamonga, including evaluation and treatment for:
Dr. Roy speaks English, Bengali, and Spanish fluently. Outside of medicine, he enjoys travel, sports, music, dancing, and films.
Undergraduate:
New York University – PreMed/English Major – graduated 1992, cum laude
Medical School:
State University of New York, Downstate – graduated 1997, cum laude
Professional Memberships:
American Academy of Otolaryngology/Head & Neck Surgery
American Academy of Facial Plastic & Reconstructive Surgery
American Medical Association
Hospital Affiliations:
San Antonio Regional Medical Center
Community Hospital of San Bernardino
St. Bernardine’s Medical Center
Monday – Friday: 8am – 5pm
Saturday – Sunday: Closed