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Robert D. Carpenter
Oral Surgeon

Dr. Robert D. Carpenter was an Associate Professor of Oral and Maxillofacial Surgery at Midwestern University for nine years before re-entering private practice. Dr. Carpenter graduated with honors from Siena College in Loudonville, New York, and Tufts University School of Medicine in Boston, Massachusetts.

Dr. Carpenter’s postdoctoral training included an internship at Bronx Municipal Hospital and residencies at both Maimonides Medical Center and New York Hospital-Cornell Medical Center, where he served as Chief Resident in the Facial Architect Center.

Dr. Carpenter is a Board Certified Oral and Maxillofacial Surgeon and Board-Certified Dental Anesthesiologist whose academic appointments include Cornell University School of Medicine and Albany Medical College.  

He is the former chairperson of the American Dental Education Association (ADEA) for the SIG for dental implants. He is currently the president of the Arizona Chapter of the American Dental Society of Anesthesiology. Dr. Carpenter is also a national and international lecturer as well as an instructor on dental implants and bone grafting.


Dr. Sonny Porter is an oral surgeon providing wisdom teeth removal and other oral surgery services to our locations.

Dr. Porter graduated from Brigham Young University in Neuroscience and later completed dental school at Loma Linda University.

Later he completed a four-year oral surgery residency program at Ft Lewis with the US Army where he was the chief resident. Upon completion of residency, he worked as an oral surgeon for the US Army for four years.

   Sonny Ray Porter    DDS

Oral Surgeon 


        Paul Northup,            DDS,      Endodontist


Dr. Paul Northup received his undergraduate degree at Western Michigan University in Kalamazoo, Michigan. He attended dental school at Northwestern University in Chicago, Illinois, and completed his residency for endodontic certification at the University of Nebraska.


Dr. Northup practiced endodontic dentistry in western Colorado from 1994 until 2019 when he moved to the Valley. He is member in good standing of The American Association of Endodontists, The American Dental Association, The Colorado Dental Association. In 2008, Dr. Northup was named by his peers as one of Colorado’s best dentists as reported by top Dentists.


Dr. Northup enjoys hiking, biking and golf, and spending time with his three daughters: Kristi, Stephanie and Susie.

Dr. percy twine white background.jpg

        Percy Twine,            DMD,      Endodontist

Dr. Percy Twine Jr. is originally from Chesapeake, Virginia. Dr. Twine attended Pennsylvania State University where he completed his Bachelor’s and Master’s degree in Food Science‚ discipline focused on all technical aspects of food. Food science incorporates concepts from many different fields including microbiology, chemical engineering, biochemistry, and many others.

Upon the completion of his graduate studies at Penn State, Dr. Twine decided to pursue a career in dentistry. He attended The University of Pennsylvania for his dental training. Dr. Twine continued his specialty training in Endodontics at Louisiana State University.

Dr. Twine is currently a member of the Arizona Dental Association and is board-eligible for the American Association of Endodontics. He also enjoys teaching and is faculty at the Arizona School of Dentistry & Oral Health. Dr. Twine and his family reside in Phoenix and love the Central Phoenix area. Most Sundays in the fall, you will find the Twine family cheering on their favorite NFL team, The Pittsburgh Steelers.


       Colin S. Shaw,            DMD,      Endodontist

Before moving to Scottsdale, Dr. Shaw provided gentle and empathetic care to the U.S. Military Veterans of New Mexico for the last 9 years.

Prior to his service at the VA, Dr. Shaw operated a successful endodontic private practice for 27 years in Albuquerque.

Dr. Shaw received his degree in dentistry from Washington University St. Louis and completed his post-doctoral education in Endodontics at the University of Illinois – Chicago. Dr. Shaw is a member of the American Dental Association.

Dr. Shaw revels in his role as father to his four children, including his two youngest that were adopted from China. He enjoys preparing elaborate meals for his family, he is an accomplished photographer and a patient golfer.

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