Physicians
Patrick Henderson, M.D.
Dr. Henderson has been in practice at Children’s Orthopedic Specialists since 2008. Dr. Henderson’s undergraduate education took place at Stanford University, where he graduated with honors in Human Biology. Dr. Henderson completed medical school at the University of California San Diego, where his exposure to pediatric orthopedic surgery at Children’s Hospital San Diego helped to shape his future career.
Kyla Hollen, DMD, MPH
Dr. Kyla Hollen is a graduate from Arizona School of Dentistry & Oral Health. During her time in dental school, she focused her outreach activities towards working with at-risk youth residing in a boot camp in Queen Creek, Arizona. The rewarding nature of working with the pediatric population and their families pushed her to pursue pediatric specialty training.
David Hu, M.D.
Dr. Hu joined Tucson Ear, Nose & Throat, P.C. in 2011. He earned his undergraduate degree in biological sciences at Stanford University. Dr. Hu completed his medical degree from the University of Michigan. He graduated his internship and residency from UCLA, Division of Otolaryngology – Head and Neck Surgery.
Lauren Imbornoni, M.D.
Dr. Lauren M. Imbornoni is a board certified ophthalmologist and specialist in pediatric ophthalmology and adult strabismus. She graduated with a Bachelor of Science degree from Arizona State University.
Marc Jacobson, M.D.
Marc S. Jacobson, MD,FAAP. A board-certified pediatrician at TMCOne, specializes in nutrition problems like cholesterol triglyceride and other lipid abnormalities, as well as weight management for children, teens and young adults.
Derrick Johnston, M.D.
Dr. Derrick L Johnston attended Dartmouth Medical school in Hanover, New Hampshire. He completed Urology residency at Georgia Health Science University in Augusta, Georgia. He completed Pediatric Urology fellowship at LeBonheur Children’s Hospital and St. Jude Children’s Research Hospital in Memphis, Tennessee.
Mike Karadsheh, M.D., MHA
I completed medical school at UTESA in Santiago, Dominican Republic, followed by Pediatric Residency at Medical College of Ohio in Toledo. I completed my Pediatric Fellowship at Vanderbilt Medical Center in Nashville, Tennessee.
Michael Kinzinger, M.D.
Benign and malignant tumors of the mouth, throat, salivary glands, thyroid gland, parathyroid glands, and head and neck skin. Transoral robotic surgery and sialoendoscopy.
Robin Kloth, M.D.
Dr. Kloth attended the University of Wisconsin in Madison for her undergraduate and medical degrees. Her training in anesthesiology was at the University of Virginia in Charlottesville, Virginia.
Eric Langerman, M.D.
Dr. Langerman worked as an outpatient pediatrician and also taking care of newborns at Canyon Vista Medical Center in Sierra Vista from 2014-2017. He has worked at TMC for the last 18 months.
Kedar Lele, DDS
Dr. Lele is a graduate of State University of New York at Buffalo, School of Dental Medicine and has 3 years of residency beyond dental school at Buffalo General Hospital and Women & Children’s Hospital of Buffalo
Macario Lichauco, M.D.
Dr. Lichauco has been practicing Neonatology at Tucson Medical Center since 2007. He graduated from the Far Eastern University - N.R.M.F. in the Philippines with a pre-medical Bachelor's degree in Medical Technology.
Neesann Marietta, M.D.
Dr. Marietta is a board certified anesthesiologist. She graduated from the University of Missouri-Columbia (Mizzou) summa cum laude with a degree in Biology and continued her medical school there. She did her residency at Beth Israel Deaconess Medical Center and her pediatric training at Boston Children’s hospital.
Rich McCoppin, M.D.
Originally, from the Pasadena area, Dr McCoppin graduated the University of Notre Dame. Subsequently, he taught history at the high school level where he also coached baseball, soccer, and cross country.
Mo Mortazavi, M.D.
Dr. Mortazavi received his medical degree from the University of California, Davis, where he also completed his pediatrics residency. He then earned a fellowship in pediatric sports medicine at Children’s Colorado in Denver.
Christine Moussa, D.O.
Christine R. Moussa, DO is a Board Certified Dermatologist and Pediatric Dermatologist by the American Board of Dermatology and American Osteopathic Board of Dermatology. She is a native Tucsonan.
Mark Murphy, DO
Mark Murphy is a “T-Loc” or Tucson Local, and he completed his civil engineering degree at the University of Arizona prior to pursuing medicine. Before attending medical school at Midwestern University in Glendale, AZ; he worked for a demolition company in Oakland, California. He completed his anesthesia residency at Texas Tech and recently completed a pediatric anesthesia fellowship at the University of California Davis. Mark is married with two young children, a four-year-old daughter and a ten-month-old son. In his spare time, he enjoys nearly all outdoor activities especially soccer and hiking. He is excited to be back in Tucson with OPA.
Karen Narkewicz, M.D.
Dr. Narkewicz began her practice in neonatology in 1994 and joined the NICU staff at TMC for Children in 2019. She received her undergraduate degree in biochemistry from Mt. Holyoke College in Massachusetts and her degree in medicine in her home state from the University of Vermont.
Brian Nielsen, M.D.
Pediatric Orthopaedic Surgery; Pediatric and Adolescent Sports Medicine; Scoliosis and Childhood Spinal Deformity; Limb Lengthening and Deformity Correction