Need to see the doctor? We can help.
Call now: 520-293-6686
Extended hours & 24 hour availability.



Children's Health

Meet the Team


New Patient Forms

Insurance & Financial


Contact Us

Meet the Children’s Medical Center of Tucson board-certified pediatricians dedicated to your child’s health

Our doctors have many decades of combined experience caring for children and the qualifications you can feel confident in for your child.

The care and kindness you want for your child

We are sure that you and your child will appreciate the care and kindness our doctors are known for. Our board-certified pediatricians know just how to talk with children to make it easier for them to get the medical care they need. Our doctors are patient, gentle and experienced with helping children feel at ease at the doctor’s office.

Learn more about The Children’s Medical Center of Tucson pediatricians here, then call to schedule your appointment to meet them in person. (520) 293-6686

Dr. Mohammed Nomaan, MD

Frank Davis, MD

Jessica Schultz, MD

Christina Montague, Pediatric Nurse Practitioner, MSN, RN, CS, PNP

Dan Cadwallader, PA-C, Physician Assistant

Sivaneswary Ananda, MD

Shook Yap, MD

Dr. Angela G.A. Manansala, MD

Dr. Nina Abdullahi Waber, MD Mohammed Nomaan, MD
Board-Certified: American Board of Pediatrics
Fellow: American Academy of Pediatrics

Dr. Nomaan is the founder of CMCT. His philosophy of care guides all we do. Over the years, Dr. Nomaan has earned an outstanding reputation among parents, staff and the medical community. Everyone who knows Dr. Nomaan recognizes his commitment to excellence in medicine and his love for and dedication to the children we serve.

Dr. Nomaan established CMCT to make high quality medical care more accessible to parents and their children. Dr. Nomaan chose to have his medical facilities close to his patients and to offer extended hours. His goal is to keep children healthy and to provide accessible care that decreases hospital and emergency room visits. Dr. Nomaan, along with his wonderful doctors, nurses and medical staff gives families peace of mind that their healthcare providers are located close to them and available to help children at all hours.

Dr. Nomann earned his medical degree at Khyber Medical College, University of Peshawar and completed his residency in internal medicine at Illinois Central Community Hospital. He completed a fellowship in Ambulatory Pediatrics at the Illinois Masonic Medical Center. Dr. Nomaan is a member of the American Academy of Pediatrics, the American Association of Clinical Allergy and Immunology and the Joint Council of Allergy and Immunology.

One of Tucson’s most experienced pediatricians, Dr. Nomaan is also active in the medical community. He is a former Medical Director of Pediatrics at Tucson General Hospital and continues to serve as an Associate Faculty Member in the Department of Pediatrics, University of Arizona Medical Center. Davis, MD
Board Certified: National Board of Medical Examiners and the American Board of Pediatrics

Dr. Davis attended medical school at Boston University School of Medicine, graduating from the six-year Honors Program in 1978. He earned his bachelor’s degree summa cum laude, and his doctoral degree (M.D.) magna cum laude. Dr. Davis then completed his three-year pediatric residency at Dartmouth/Hitchcock Medical School in Hanover, NH.

Dr. Davis joined the United States Air Force in 1990. He traveled around the world while also doing what he loved – practicing medicine. During his tenure with the Air Force, Dr. Davis developed the first fitness training class for children and further developed his skills in emergency care and trauma medicine.
Today at Children’s Medical Center of Tucson, Dr. Davis’ areas of interest are sports medicine, allergies, asthma, and behavioral conditions such as Attention Deficit Hyperactivity Disorder (ADHD). He and his wife have two children. In his spare time, Dr. Davis enjoys spending time gardening, hiking, bicycling, playing tennis, and weightlifting. Schultz, MD
Board Certified: American Board of Pediatrics
Fellow: American Academy of Pediatrics

Dr. Schultz was born in Knoxville, Tennessee, and grew up on a farm in Colorado. She received her Bachelor of Science in Biochemistry from New Mexico State University. Dr. Schultz returned to Colorado to attend medical school at the University of Colorado Health Sciences Center, receiving her Medical Doctorate in 2000. She then moved to Washington, D.C. to complete her internship and residency at Georgetown University Children’s Medical Center. At Georgetown, Dr. Schultz served as the Pediatric Chief Resident, coordinating the resident’s training and education.
Dr. Schultz completed a five-month medical mission to Mexico before moving to Tucson and joining Children’s Medical Center of Tucson. Her special interest area is in the field of asthma and obesity.

Dr. Schultz is excited to be in Tucson, where her parents and family live. In her free time, she enjoys sports, hiking, reading and spending time with her husband and their two dogs. Nurse Practitioner, Christina Montague, MSN, RN, CS, PNP
Member: National Association of Pediatric Nurse Practitioners

Since Christina was a young girl, wanted to care for children and to see them healthy. Her love for children led her to pursue her desire by entering college at age 17. She completed a registered nurse program and received an Associate’s Degree in nursing from Bronx College and then a Bachelor’s Degree in nursing from Herbert H. Lehman College in New York. She continued her education by completing the Pediatric Nurse Practitioner Program at Mississippi University for Women, receiving a Master of Science Degree in Primary Care Pediatrics. Christina has worked extensively in pediatrics, including a Neonatal Intensive Care Unit, Pediatric Intensive Care Unit, and Foster Care Clinic. Christina is certified by the American Nurses Credentialing Center (ANCC). She is also credentialed in Pediatric Advanced Life Support.

Christina was a captain in the United States Air Force and served as a pediatric nurse for four and a half years. Her specialty and love are children and she is dedicated to providing holistic care and promoting optimum health and well-being for them and their families. Christina is committed to continuing education and is passionate about providing the best and most up-to-date care possible for her patients.

Even with a busy schedule, Christina finds time to counsel others in life’s problems. She is a certified lay counselor and member of the American Association of Christian Counselors. She and her husband, Austin, serve as pastors of their church. They have four children. Christina enjoys singing, reading, playing board games, and traveling with her family. Assistant, Dan Cadwallader, PA-C
Member: American Academy of Physician Assistants, AAPA Member, Society of Physician Assistants in Pediatrics

While spending the summer volunteering at a missionary hospital in Limbé, Haiti 25 years ago, Dan had the unique opportunity of experiencing firsthand the enormous impact a group of dedicated people could make in the lives of others, as well as their own. After that summer in Haiti, he devoted himself to becoming a Physician Assistant and soon found himself at one of the country’s premier PA programs.

Just prior to completing the program, he returned to that same hospital in Haiti. This was during the late 1980’s and the AIDS epidemic had exploded, as did Haiti’s tumultuous political situation, heaping more suffering on this desperately impoverished nation. “In spite of these hardships, I found that the hospital staff and its international volunteers of doctors and nurses remained steadfast in their resolve to improve an impossible situation. This dedication left an indelible mark on my heart and shaped my understanding of stewardship. Now, twenty years later, I feel I am part of another tremendous organization at Children’s Medical Center of Tucson. Here again are a diverse group of individuals working as a team to serve our community’s children.” Dan feels that being given charge of that which is most precious to someone – their child – “is the highest honor and a monumental responsibility.”

Dan enjoys spending time with his wife and son. “The three of us love to play, read and ride bikes.” He also enjoys writing and hopes to one day publish several of the children’s books he has written. Ananda, M.D.

Board Certified: Pediatric Medicine Fellow: American Academy of Pediatrics

Dr. Ananda moved to Arizona after practicing pediatric medicine in upstate New York for 13 years. With staff privileges at Tucson Medical Center and Northwest Hospital, Dr. Ananda is committed to providing quality care to children by staying current on new methods of treatment. Dr. Ananda is a fourtime winner of the American Academy of Pediatrics PREP Education Award. Dr. Ananda is board certified in pediatrics and has special interest in asthma and ADHD (Attention Deficit Hyperactivity Disorder). She was educated at the University of Colombo Medical School in Sri Lanka, with pediatric residency training at Harlem Hospital Center, an affiliate of Columbia University. She underwent a year of neurology training at the Hospital for Sick Children in Toronto, Canada. Dr. Ananda loves children and is dedicated to their welfare, which inspired her to work in a field where caring for children is the number one priority. Dr. Ananda and her husband have raised two children. Her hobbies include gardening, cooking and traveling with her family. Yap, M.D. Board Certified: Pediatric Medicine

Dr. Yap is a board-certified pediatrician who has been with Children’s Medical Center of Tucson since 2010. Her areas of special interest include newborn care and childhood obesity. Dr. Yap is assistant director of the Grow 2B Fit Foundation, a local non-profit organization founded by Dr. Jessica Schultz that is dedicated to the prevention of childhood obesity through family lifestyle education. Dr. Yap was born and raised in Malaysia. She attended medical school at University College Cork in Cork, Ireland. After graduation, she trained as a resident in pediatrics at Cork University Hospital and Our Lady’s Hospital for Sick Children in Dublin, Ireland. During her residency, Dr. Yap was given the Walt Vikram Troester Memorial Scholarship for demonstrating exemplary compassion in the care of newborns. Dr. Yap moved to the United States in 2003 to join her husband, who is an interventional cardiologist at the University of Arizona. Dr. Yap, who has published papers on ailments in newborns, completed her U.S. residency training at St. Joseph’s Medical Center, Phoenix, in 2008. She previously worked in a pediatric practice in Covington, Georgia. Dr. Yap is devoted to her two children and in her spare time, enjoys running, swimming, dancing, traveling and the outdoors. Angela G.A. Manansala, M.D.
Board Certified: Pediatric Medicine Fellow: American Academy of Pediatrics

A native of the Philippines, Dr. Manansala graduated from the University of Santo Tomas Faculty of Medicine and Surgery in Manilla, Philippines. While living in the Philippines, she completed anesthesiology residency training and became a board certified anesthesiologist. When Dr. Manansala migrated to the US, she completed pediatrics residency training at Henry Ford Hospital in Detroit. Dr. Manansala has been practicing at Children’s Medical Center of Tucson since November 2012. Prior to joining the Children’s Medical Center, she served as Emergency Pediatrician in Michigan for 11 years. Before that, she worked as a General Pediatrician in Tennessee, Michigan and Arizona for 7 years. She is especially interested in childhood immunizations and pediatric emergency care. As a board-certified pediatrician and fellow of the American Academy of Pediatrics, Dr. Manansala is passionate about partnering with parents to protect and advance their children’s health and well-being. She feels that being able to provide exceptional care to children is a remarkable privilege that should be taken seriously, practiced compassionately and attended to diligently. Along with her passion for pediatrics, Dr. Manansala has an avid interest in theater. She also enjoys Scrabble®, cooking, hiking and traveling. Nina Abdullahi Waber, M.D.
Member: Association of American Physicians, American Medical Association, American Academy of Pediatrics

Dr. Nina Abdullahi Waber graduated from the University of Arizona College of Medicine, where she received the Dean’s Special Achievement Award during medical school. Dr. Waber completed the University of Southern California Pediatric Residency program in 2013 and, shortly after, came back to Tucson to join the Children’s Medical Center team. Throughout her residency, Dr. Waber contributed her expertise to many presentations and articles, earning special recognition for her scholarly work at the Annual Resident Scholarly Activity Forum associated with the Los Angeles County and University of Southern California (LAC + USC) Medical Center. She has shared her knowledge of various pediatric medical issues, including skin infections, breastfeeding, obesity and Marfan Syndrome, among others. Dr. Waber is fluent in Amharic and Harari, both Ethiopian languages. In her free time, she enjoys watching movies with her son Adib and her daughter Nia. She is also an avid reader and enjoys The Hunger Games series. Her favorite places to visit with her family are the Arizona-Sonora Desert Museum, the Reid Park Zoo and the Children’s Museum Tucson.



Schedule an appointment with
Children’s Medical Center of Tucson now: 520-293-6686