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Desert Ridge Prosthodontics
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Care You Can Trust

Our mission is to provide a warm, welcoming environment where every patient feels comfortable and valued. We’re dedicated to delivering the highest quality of care while putting honesty, integrity, and compassion at the heart of everything we do. From your first visit to your final results, we’re committed to making your experience a positive one.

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Meet Our Dentists

Our doctors are dedicated to delivering exceptional prosthodontic and cosmetic care with precision, compassion, and attention to detail. By combining advanced training with the latest technology, they create personalized treatment plans designed to restore function, enhance aesthetics, and improve long-term oral health. Get to know the experienced clinicians who are committed to helping you smile with confidence.

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Gregory A. Libby

DDS

Dr. Libby was born and raised in Des Moines, Iowa. He attended Iowa State University, where he earned a Bachelor of Science in Biology in 1993, before receiving his Doctor of Dental Surgery (DDS) degree from the University of Iowa in 1998.

Before and during dental school, Dr. Libby had the opportunity to work in the University of Iowa Hospitals & Clinics Dental Clinic as part of the dental laboratory team. The clinic was led primarily by two prosthodontists whose passion for the specialty inspired him to continue his education and pursue advanced training in prosthodontics. He went on to complete a three-year Prosthodontic residency at the University of Connecticut before moving to Phoenix, Arizona, in the summer of 2001.

Dr. Libby is married to Dr. Lidieth Libby, a pediatric dentist who practices next door. Together they have three children, two boys and a girl, who keep them busy and active.

Outside the practice, the Libbys are passionate about giving back through an organization that provides medical, dental, and community outreach services to underserved communities in Mexico. They lead one to two mission trips each year with teams of doctors and volunteers and are currently working to establish a dental clinic that will provide year-round care for the Mayan people of the Yucatán Peninsula.

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Nishi Vakharia

DDS

Dr. Vakharia is a native of Illinois, where he earned a Bachelor of Science in Physiology with a minor in Chemistry from Southern Illinois University. He began his career as a radiochemist for the Illinois Department of Nuclear Safety before pursuing dentistry at the University of Illinois Chicago, where he earned his Doctor of Dental Surgery (DDS) degree. After practicing outside of Chicago, he relocated to Santa Fe, New Mexico, where he owned and operated a private practice for more than 22 years before making Phoenix, Arizona, his home.

Dr. Vakharia is dedicated to providing comprehensive, patient-centered care with a conservative, minimally invasive approach that supports lasting oral health and natural-looking results. He has completed advanced training at The Dawson Academy and continues to expand his expertise through Spear Education at the Scottsdale Center for Dentistry. This ongoing education allows him to develop comprehensive treatment plans that consider not only the health and function of the teeth, but also overall facial harmony.

Outside the office, Dr. Vakharia enjoys traveling, skiing, exploring new restaurants, and spending quality time with his family.

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Lounge area with a gray sofa, burgundy chair, and a magazine rack on a pillar beside large windows.
Modern interior hallway with abstract painting, a dried floral arrangement in a geometric vase on a dark console, and a large wall lamp above.
Dental treatment room with a reclining chair, overhead light, wall monitor, and wooden cabinets.
Glass-walled hallway with frosted geometric pattern, modern door handles, and framed certificates on the wall in a clean office lobby
Coffee/tea station with espresso machine, pitcher, and sachets on a gray counter under frosted glass with geometric pattern
Dental treatment room with a blue operatory chair, overhead light and dental equipment ready for use in a beige clinic.
Front exterior of Desert Ridge Prosthodontics clinic with large glass windows reflecting surrounding buildings, beige stone walls, and desert landscaping in the foreground.
Reception desk in a modern office with frosted geometric window, security camera, and decorative tall dried branches in a geometric vase by the counter.
Two gray armchairs with a wooden side table between them in a modern lobby seating area, a round slatted wood coffee table with magazines, and a patterned gray rug with red accents in front.
Modern medical office kitchenette with dark, glass-front cabinets, under-cabinet lighting, and a gold faucet over a beige countertop.
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Experience the Difference

From the moment you arrive, you’ll notice an office designed with your comfort in mind. Our modern Phoenix practice combines advanced technology with a warm, welcoming atmosphere to create an exceptional patient experience. Every detail—from our thoughtfully designed treatment spaces to our comfortable reception area—reflects our commitment to personalized care, comfort, and clinical excellence. Take a look around and see where exceptional smiles begin.

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