Visit Any of Our Family Dental Offices Phone: (520) 723-0655 3385 N Hunt Highway, Ste 127 Florence, AZ 85132

Meet Your Dental Team

Larry Groop, DMD

Dr. Groop grew up near the New Jersey Shore and joined the Army after attending Kent State University. After being stationed in the Pacific Northwest, he graduated from Washington State University. Dr. Groop served as a police officer before attending dental school at the Arizona School of Dentistry and Oral Health. He graduated with honors and received a scholarship from the International Congress of Oral Implantologists for his excellence in implant placement and restoration.

Dr. Groop is committed to exceeding the expectations of his patients and actively pursues ongoing training opportunities. He enjoys spending time getting to know each patient and building relationships that foster optimum dental health.

Outside of his work in the practice, Dr. Groop devotes time to his family. He also likes traveling, scuba diving, and learning to play golf in sunny Arizona.

Brandon J. Ryff, DDS


Dr. Brandon J. Ryff earned his Bachelor of Science degree in Molecular and Cellular Biology as well as his Bachelor of Health Science in Physiology, Biochemistry, and Molecular Biophysics from the University of Arizona, College of Medicine. Dr. Ryff received his Doctorate in Dental Surgery from the University of Michigan, School of Dentistry in Ann Arbor, MI. The University of Michigan is among the top ranking dental schools in the United States, known for its profound contributions to dental research, public health, and technological innovation in the field of dentistry.

The field of dentistry is constantly evolving, and Dr. Ryff understands the importance of keeping up-to-date with the newest and best dental technology. As a member of the Academy of General Dentistry, Dr. Ryff places strong emphasis on continuing education and insists on using only the best materials and most advanced technology dentistry has to offer. The result is longer lasting and more affordable dental care for you as our patient.

Highly trained in the management of dental anxiety and the alleviation of dental pain, Dr. Ryff practices a patient-centered approach to dentistry. He believes that patients should be actively involved in choosing the treatment options that best suit their individual needs. By using a chairside flat-screen monitor, which visually displays problem areas found on X-rays, Dr. Ryff helps his patients to better understand their dental condition and available treatment options.

Personal Life

As a lifelong Arizonan, Dr. Ryff and his wife, Marissa, enjoy time spent outdoors, camping, fishing, and kayaking. He and his wife have a chocolate Labrador retriever named Kona and a cat named Purrpa.

Timothy Yu, DMD - Orthodontist

Originally from the Midwest, Dr. Timothy Yu was born and raised in Michigan and went to Oberlin College in Ohio where he earned a Bachelor’s Degree in biology. He continued his love of science by attending Temple University School of Dentistry in Pennsylvania where he earned his Doctor of Dental Medicine Degree graduating near the top of his class.

During dental school he found his life’s calling—orthodontics, and continued his pursuit by remaining at Temple University to complete his orthodontic residency earning a Master’s of Science Degree and Orthodontic Specialty Certificate. During residency he was able to explore many cutting-edge areas of orthodontics culminating in his master’s thesis studying the effectiveness of Invisalign compared to conventional braces. As a resident he also enjoyed introducing dental students in the intricacies of orthodontics as a preclinical lab instructor. In 2008 he moved to Phoenix with his wife Lucia and began to set roots welcoming their first child Noah in 2010.

Dr. Yu is Board Certified by the American Board of Orthodontics, and is an active member of the American Association of Orthodontists, Pacific Coast Society of Orthodontists, and American Board of Orthodontics. In his spare time he loves golfing and spending time with his wife and family

Your Team For Quality Care

Call Merrill Ranch Dental Care in Florence, AZ today to schedule your appointment or consultation. Our conveniently located Florence office provides families in Queen Creek, Coolidge, Gilbert, and surrounding areas with personalized attention for happy, healthy smiles.

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