Our Doctors

  • Dr. Mason Duff
    Dr. Mason R. Duff
    Doctor of Dental Medicine

    A native to Las Vegas, Dr. Mason Duff earned his dental degree from the UNLV School of Dental Medicine. Before attending dental school, he attended Brigham Young University, where he received his Bachelor of Science degree in the field of Biology. As an undergraduate student, he learned to speak Spanish fluently while living in Honduras for 2 years.

    Ask any of his patients and they will tell you that Dr. Duff is gentle and compassionate. He is sincere in his devotion to helping patients achieve their best smiles.

    Dr. Duff provides his patients with the latest in dental techniques by frequently attending continuing education courses in aesthetics and restorative dentistry. He is dedicated to lifelong learning and he is constantly attending courses throughout the country.

    Dr. Duff maintains membership in these professional associations:

    • Academy of General Dentistry
    • American Academy of Cosmetic Dentistry
    • America Academy of Oral Systemic Health
    • American Dental Association
    • Nevada Dental Association
    • Southern Nevada Dental Society

    Dr. Duff is steadfast in his vision of treating everyone with the best possible standard of care. His mission is to share his passion of oral health and overall health with his patients. He believes dental visits can be straight forward and even pleasant. Dr. Duff looks forward to serving you!

  • Robert Riegel
    Dr. Robert Riegel
    Doctor of Dental Surgery

    Dr. Robert Riegel was born and raised on a farm in Western Kansas. Dr. Riegel graduated from the University of Missouri-Kansas City School of Dentistry in 1968. He practiced general dentistry in Kansas City before moving to Los Angeles in 1970 where he continued to practice general dentistry in the West Covina area.

    In 1980, Dr. Riegel returned to UMKC to take specialty training in Prosthodontics, dental treatment that involves the use of crowns (caps), bridges, removable partial and full dentures, and implants.

    After he finished his graduate studies at UMKC, Dr. Riegel completed a hospital residency at UCLA where he treated head and neck cancer patients. Upon completion of all his specialty training, Dr. Riegel accepted a part time teaching position with Loma Linda University School of Dentistry and remained in private practice in Diamond Bar, Hollywood and Long Beach prior to assuming a full time professorship at Loma Linda in 1990. He was in charge of teaching complete dentures and removable partial dentures to the University's dental students. During his last five years at Loma Linda he was Section Chief of Removable Prosthodontics. Dr. Riegel was also involved in creating a program for teaching post-graduate dentists who wanted to specialize in prosthetic and implant dentistry.

    In 2000, Dr. Riegel resigned his full time position at Loma Linda and moved to Las Vegas where he opened a private practice that specialized in dentures and implant placement.

    In 2008, he established a second practice in Western Riverside CA. Dr. Riegel continues to practice his specialty while his associates practice general dentistry.

  • Jabran Alemi
    Dr. Jabran Alemi

    A native of San Diego, California, Dr. Alemi attended San Diego State University for his undergraduate studies prior to accepting early admission into UCSF School of Dentistry. After practicing as a general dentist for 3 years, Dr. Alemi pursued advanced studies and training by completing a 3 year residency in Prosthodontics at the John D. Dingell VAMC and University of Michigan School of Dentistry. Having served as a clinical instructor and lecturer in the field of dental implants, Dr. Alemi provides implant, cosmetic, full mouth reconstructions, smile makeovers and advanced dental services for our patient. He holds professional affiliations with the ADA, American College of Prosthodontics (ACP), Academy of Osseointegration (AO), American Academy of Fixed Prosthodontics (AAFP), California Dental Association (CDA), and Southern Nevada Dental Association (SNDA). Outside of the dental office, he enjoys traveling, dining and hiking.