Providers


Melina Calderon, PA-C
Degrees
B.S. & M.S. Physician Assistant, Harding University
Certification
Certified by the National Commision on Certification of Physician Assistants
Experience
6 years as a physician assistant

Melina joined the team at Triad Pediatrics in November of 2018. She completed her Bachelor of Science and Master of Science (Physician Assistant Studies) from Harding University in Searcy, Arkansas. Melina holds a NC medical license and is certified by the National Commission on Certification of Physician Assistants. Prior to joining the team at Triad Pediatrics, she served for six years as a Physician Assistant at Cleburne Pediatrics in Cleburne, Texas. Melina brings a heart for medical missions and for the nations to Triad Pediatrics. In addition, she is comfortable conversing with patients and families in Spanish.

Dr. Mark Cummings, MD
Degrees
MD East Carolina University, Brody School of Medicine
Certification
Board Certified by the American Board of Pediatrics
Experience
Over 10 years practicing as a Pediatrician

Dr. Cummings joined the team of providers at Triad Pediatrics in October of 2019. Prior to this, Dr. Cummings cared for patients for ten years at Greensboro Pediatricians here in the Triad. Dr. Cummings is a board certified pediatrician. He completed medical school at East Carolina University Brody School of Medicine and residency at the University of Virginia School of Medicine. Dr. Cummings and his wife Emily have three children and are active members at Westover Church in Greensboro.

Dr. Tom Dillard, MD
Degrees
MD, UNC Chapel Hill
Certification
Board Certified by the American Board of Pediatrics
Experience
Residency training at University of Virginia, 10 years practicing as Pediatrician, Experience as missionary pediatrician in Kenya

For the last decade, Dr. Dillard and his wife, Emily, have called the Triad their home. The Dillards stay quite busy chasing their 6 children around while attempting to homeschool them. Prior to joining Triad Pediatrics in 2018, Tom’s calling to minister to the sick and hurting children of the world led him to serve as a missionary Pediatrician at Tenwek Hospital in southwestern Kenya. Triad Pediatrics is an extension of Tom’s desire to be involved in global missions and to serve families both in High Point as well as in Kenya. Tom and Emily are active members of Westover Church in Greensboro.

Currently, Dr. Dillard and his family are serving at Tenwek Mission Hospital in Kenya. He is still actively involved in the leadership and direction of Triad Pediatrics. They appreciate your prayers for them during this time of service in Kenya.

Maddie Henrish, FNP-C
Degrees
B.S. in Nursing – Waynesburg University – Waynesburg, PA
M.S. in Nursing – Family Nurse Practitioner – West Virginia Wesleyan College – Buckhannon, WV
Certification
Board-certified by the American Academy of Nurse Practitioners with a national certification
Experience
Pediatrics Nurse Practitioner, 2 years

Maddie joined the team of providers during the summer of 2022. Maddie and her husband recently moved from Pittsburgh, PA to Colfax. They have three daughters and are active members of Mercy Hill Church in Greensboro.

Heather Martin, PA-C
Degrees
M.S. Physician Assistant, University of North Texas
Certification
Certified by National Commission on Certification of Physician Assistants, Registered Dietitian
Experience
Registered dietitian in Pediatric Endocrinology, 10 years practicing as Pediatric Physician Assistant

Heather and her husband, Tim, reside in High Point. They have two children. Heather served as a Registered Dietitian in adult cardiology and later in Pediatric Endocrinology. She has practiced in pediatrics since completing Physician Assistant studies in 2007. Heather is excited about the vision of Triad Pediatrics. She and Tim are active members of Cornerstone Baptist Church in Winston-Salem.

Dr. Janie Ogle, DO
Degrees
DO, Edward Via College of Osteopathic Medicine
Certification
Board Certified by the American Board of Pediatrics in Pediatrics and Sports Medicine

Dr. Ogle joined the team of providers in August of 2020. She completed medical school at the Edward Via College of Osteopathic Medicine in Blacksburg, Virginia. She completed her pediatric residency at the University of Kentucky and most recently a sports medicine fellowship at the University of Tennessee. Dr. Ogle is a board-certified pediatrician and has also obtained board certification in pediatric sports medicine. Dr. Ogle has served on numerous short term mission trips and looks forward to further opportunities providing medical care overseas. We are grateful that she is joining the team at Triad Pediatrics and look forward to welcoming her to the High Point and Greensboro community.

Dr. David Olson, MD
Degrees
MD University of Missouri-Columbia
Certification
Board Certified by the American Board of Pediatrics
Board Certified by the American Board of Obesity Medicine
Experience
Over 20 years practicing as a Pediatrician

Dr. Olson joined the team of providers at Triad Pediatrics in July of 2019. Prior to this, Dr. Olson served patients and families at Joel Health Clinic in Fort Bragg, North Carolina for twelve years. Dr. Olson is a board certified pediatrician and obesity medicine doctor. He completed medical school at the University of Missouri-Columbia and then his internship and residency at University Hospitals and Clinics in Columbia, Missouri.

Emily Phillips, MD
Degrees
MD, Long School of Medicine,
University of Texas Health San Antonio
Certification
Board certified by the American Board of Pediatrics

Dr. Emily Phillips, MD joined the provider team in October of 2021. She completed medical school at Long School of Medicine in San Antonio, Texas and then completed her pediatric residency at the University of New Mexico. Her husband is a physician as well, currently serving in the pulmonary critical care fellowship program through WFBH in Winston-Salem. Dr. Phillips and her husband have a heart for the nations having served short-term overseas and desiring to do future work overseas as well. They have two young children and are active members at Emmanuel Church of Winston-Salem.

Jessica VanDeven, PA-C
Degrees
B.S. Physician Assistant,
Seton Hill University
Certifications
Certified by the National Commission on Certification of Physician Assistants, Certified Lactation Consultant
Experience
15 years practicing as a physician assistant; 5 years practicing as a lactation consultant

Jessica and her husband, Jeff, are recent transplants to Greensboro. They come to us from Greensburg, PA outside of Pittsburgh, where Jessica practiced as a pediatric physician assistant, as well as a certified lactation consultant. She and Jeff have four small children and are very active in a new church plant in Northeast Greensboro, Proximity Church. Jessica is very excited to use her experience in medicine, as well as her love for Christ to minister to and care for the patients of Triad Pediatrics and the surrounding community.

Mary Yonjof, FNP-C
Degrees
B.S. in Nursing - Registered Nurse - Edgewood College - Madison,
Wisconsin
M.S. in Nursing - Family Nurse Practitioner - Purdue Global University
Certification
Board-certified by the American Academy of Nurse Practitioners with a national certification
Experience
Over 30 years of experience as a Registered Nurse serving pediatric and adult populations.
Family Nurse Practitioner 2 years

Mary joined the team of providers in November of 2021. She loves the mission and vision of Triad Pediatrics. She has a passion for sharing Jesus with her local community and abroad. She also has a passion for helping children and families with a holistic approach to their health. Mary has a heart for those who are overlooked and has a homeless ministry in Greensboro. Mary lives in Madison with her husband and has 2 grown children and 3 beautiful grandchildren. She attends Living Way Church in Greensboro.

Practice administrator


Chad Cooke, PhD , LCMHC

Dr. Cooke and his wife, Holly, returned to the Triad region in the spring of 2011. They are blessed with three active boys. Dr. Cooke completed doctoral studies in psychology and counseling at Southwestern Baptist Theological Seminary in Fort Worth, Texas. He is licensed as a clinical mental health counselor and serves as the practice administrator at Triad Pediatrics. Currently, he and his family are active members at King’s Cross Church in Greensboro.

Management Team


Clinical Staff


Front Desk Staff