Meet The Doctors

All our surgeons at Colorado Gum Care are board certified in the practice of periodontics and the placement of dental implants. 


Matthew A. Johanson, DMD, MS

Dr. Matthew A. Johanson received his Bachelor's Degree in Biochemistry magna cum laude from Middlebury College and received his dental education at the University of Connecticut School of Dental Medicine. 

During his dental education at UCDM, Dr. Johanson was the recipient of the Opinsky Scholarship for academic achievement, the Listerine Award of Excellence for outstanding research relating to Periodontology, and the AAP Dental Student Award for achievement in Periodontology.    Dr. Johanson completed his specialty training and received his Master's Degree in Periodontics from the University of Texas Health Science Center at San Antonio.

Dr. Johanson is a Diplomate of the American Board of Periodontology.  Dr. Johanson has been selected by 5280 Magazine as a Top Periodontist.  Dr. Johanson’s practice involves the full spectrum of periodontal therapy, dental implants, and IV sedation.   In his free time, he enjoys skiing, biking, and running, Dr. Johanson also has two young children who keep him energized!   Dr. Johanson lives in Denver with his wife Heidi, a physician at The Children's Hospital.

Tyler D. Borg, DDS, MS

Dr. Tyler D. Borg, a Westminster native, graduated from Xavier University before attending the University of Colorado School of Dental Medicine where he served as Class and Student Body President.  While at The University of Colorado, Dr. Borg was awarded the American Academy of Periodontology Award, The American Academy of Implant Dentistry Award, The Academy of Osseointegration Award, The Colorado Dental Association Student Excellence Award, and also completed research on Dental Implants. 

Dr. Borg completed his specialty training in Periodontics at The University of Texas Health Science Center at San Antonio and received a Master’s Degree in Dental Science.  At The University of Texas Dr. Borg conducted clinical research in bone grafting and dental implants.  Dr. Borg is the recipient of the John F. Prichard Award for excellence in clinical research from the Southwest Society of Periodontists as well as the Kenneth D. Rudd award for completion of over 100 hours of continuing education annually.  Dr. Borg is the recipient of the Maria Yueng Research Award from the University of Texas Health Science Center at San Antonio and also the AAP Foundation Robert S. Schoor Award.  Dr. Borg is a 5280 Magazine Top Periodontist.

In addition to maintaining his private practice Dr. Borg serves as a Clinical Assistant Professor in the Department of Surgical Dentistry at The University of Colorado School of Dental Medicine.  Dr. Borg also serves on the Colorado State Dental Board Anesthesia Committee and is the Co-Chair of the Anesthesia Committee for the American Academy of Periodontology.  

Dr. Borg has speciality training in Dental Implants, Periodontal Plastic Surgery, Advanced Bone Grafting, Full Mouth Rehabilitation, Dental Laser Therapy, IV Sedation, as well as Periodontal Disease Treatment.  Dr. Borg is a diplomate of the American Board of Periodontology.  

Dr. Borg is certified in the Pinhole Surgical Technique, a technique used for gum grafting using no incisions and no sutures.

Dr. Borg lives in Westminster with his wife and two sons and enjoys the famous Colorado outdoors. 

Mark A. Wheeler, DMD

Dr. Mark A. Wheeler graduated from Wake Forest University before attending Fairleigh Dickinson University School of Dentistry. After completing his specialty training in Periodontics, Dr. Wheeler served four years in the United States Army in Landstuhl, Germany.  

Dr. Wheeler is a Diplomate of the American Board of Periodontology.  Dr. Wheeler is a member of the American Dental Association, Colorado Dental Association, American Academy of Periodontology, World Clinical Laser Institute and the International Team for Implantology.  Dr. Wheeler has been selected by 5280 Magazine as a Top Periodontist in Denver every year from 2009 to 2017.  

Dr. Wheeler founded Colorado Gum Care in 1986.  Dr. Wheeler and his wife, Mary, have lived in Denver for 25 years. They have two daughters. In their free time Dr. Wheeler and his wife enjoy golf and traveling.