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About Me
I was originally encouraged by my mother, a labor and delivery nurse, to pursue a career in medicine. I became a pediatric orthopaedic surgeon because it is a challenging surgical specialty that requires a lot of thought when making decisions, and because the population is near and dear to my heart. I take care of children with special orthopaedic needs, including scoliosis and other spine disorders, as well as children with growth abnormalities. I also see pediatric trauma patients, meaning children who need orthopaedic surgery due to an accident or other injury. I am inspired by a child's ability to overcome adversity and to adapt to their circumstances, and I find deep gratification when I am able to help improve their lives in some way.
- Professor of Orthopaedic Surgery, Orthopaedic Surgery 2022
- Professor in Pediatrics, Pediatrics 2022
Call for an Appointment
Areas of Expertise
- Scoliosis
- Hip Dysplasia in Children
- Limb Deformity
- Clubfoot
Ratings and Reviews
The ratings and reviews are based on patient responses to the overall provider rating question from the survey. The question reads: “Using any number from 0 to 10, where 0 is the worst provider possible and 10 is the best provider possible, what number would you use to rate this provider?” Responses are converted to a 5-point rating system and applied consistently to all providers. Learn more about our survey process. Patients who see some types of providers receive a different version of the patient satisfaction survey. Those results are not available on DukeHealth.org.
Training and Education
In the News
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Clinical Focus and Research
I am actively involved in multiple research studies involving scoliosis and other spinal disorders. I am also interested in skeletal growth and development.
- Fresh Tissue Lab Agreement awarded by Bioventus LLC 2025 - 2025
- Return to Function following Fusion of the Spine awarded by Setting Scoliosis Straight Foundation 2019 - 2023
- Dial, Brian L., Valentine R. Esposito, Anthony A. Catanzano, Robert D. Fitch, and Robert K. Lark. “Implant Distribution Versus Implant Density in Lenke Type 1 Adolescent Idiopathic Scoliosis: Does the Position of the Screw Matter?” Global Spine J 11, no. 7 (September 2021): 1076–82. https://doi.org/10.1177/2192568220941456.
- Swarup, Ishaan, Elle M. MacAlpine, Oscar H. Mayer, Robert K. Lark, John T. Smith, Michael G. Vitale, John M. Flynn, Jason B. Anari, Pediatric Spine Study Group, and Patrick J. Cahill. “Impact of growth friendly interventions on spine and pulmonary outcomes of patients with spinal muscular atrophy.” Eur Spine J 30, no. 3 (March 2021): 768–74. https://doi.org/10.1007/s00586-020-06564-8.
- Catanzano, Anthony A., Valentine R. Esposito, Brian L. Dial, Christine J. Wu, Zoe W. Hinton, Thomas J. Risoli, Cynthia L. Green, Robert D. Fitch, and Robert K. Lark. “Staying ahead of the curve: the use of spinopelvic parameters to predict curve progression and bracing success in adolescent idiopathic scoliosis.” Spine Deform 8, no. 6 (December 2020): 1213–22. https://doi.org/10.1007/s43390-020-00159-5.
- Murphy, R. F., and R. K. Lark. “Preoperative optimization and nutrition.” In Growing Spine Management of Spinal Disorders in Young Children Third Edition, 743–49, 2022. https://doi.org/10.1007/978-3-030-84393-9_50.
- Smith, B. G., and R. K. Lark. “Pediatric spine disorders and spine trauma.” In Orthopaedic Knowledge Update 12, 721–36, 2018.
- Faust, K. C., R. K. Lark, and F. J. Leversedge. “Pediatric Clavicle Injuries.” In Clavicle Injuries A Case Based Guide to Diagnosis and Treatment, 205–14, 2017. https://doi.org/10.1007/978-3-319-52238-8_12.
- Gu, H., R. Colglazier, J. Zhang, R. Lark, B. Alman, and M. Mazurowski. “Predicting 3D forearm fracture angle from biplanar Xray images with rotational bone pose estimation.” In Proceedings of Machine Learning Research, 250:554–76, 2024.
Insurance Accepted
Duke Health contracts with most major health insurance carriers and transplant networks, including the ones listed below.
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Aetna
- Aetna Choice POS, Aetna Choice POS II
- Aetna Elect Choice HMO, Aetna Open Access Elect Choice
- Aetna Health Network Only, Aetna Health Network Option
- Aetna HMO
- Aetna Limited Benefit Insurance PPO
- Aetna Managed Choice POS
- Aetna Medicare Assure Plan (HMO D-SNP)
- Aetna Medicare Eagle Plan (PPO)
- Aetna Medicare Essential Plan (PPO)
- Aetna Medicare Value Plan (HMO)
- Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice
- Aetna Open Choice PPO
- Aetna PCP Coordinated POS Plan
- Aetna Quality Point of Service (QPOS)
- Aetna Select HMO
- Aetna Traditional Choice
- Aetna Voluntary Indemnity Group Plan
- Aetna Whole Health – Duke WakeMed WKCC
- Aetna/CVS Health
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Ambetter
- Ambetter of North Carolina
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Blue Cross Blue Shield of NC
- Blue Advantage
- Blue Medicare (HMO, PPO)*
- Blue Options (123, PPO, HSA)
- Blue Select
- NC State Employees Health Plan
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*Duke HomeCare and Hospice does not participate in the plan.
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Cigna
- Cigna Behavioral Health (*Limited eligibility)
- Cigna Choice Plus
- Cigna Connect Individual Family Plan
- Cigna Open Access
- Cigna Open Access Plus
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*Please call Cigna Behavioral Heath to see if the provider is participating in your plan.
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Duke Group Plans
- Duke Basic
- Duke Select
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Experience Health
- Experience Health Medicare Advantage (HMO) Plan
- Gateway Health Alliance
- Healthgram
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Humana
- Humana Choice (PPO)
- Humana Choice - Medicare Advantage (PPO)
- Humana ChoiceCare - Medicare Advantage (PPO)
- Humana Gold Choice - Medicare Advantage (PFFS)
- Humana Gold Plus - Medicare Advantage (HMO)
- Humana Medicare Advantage Group Plan - NC State Retirees
- MedCost
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Medicare
- First Medicare Direct
- Medicare Part A
- Medicare Part B
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NC Medicaid
- AmeriHealth Caritas North Carolina
- Carolina Complete Health
- Healthy Blue
- NC Medicaid Direct
- UHC Community Plan
- WellCare of North Carolina
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TRICARE
- TRICARE Prime
- TRICARE Prime Remote
- TRICARE Select
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United Healthcare
- AARP Medicare Advantage Plan 2 (HMO-POS)
- AARP Medicare Complete (HMO, PPO)*
- AARP Medicare Complete Essential (HMO)*
- All Savers Alternate Funding
- All Savers Fully Insured
- United Healthcare (HMO, PPO, POS)**
- United Healthcare Charter/Charter Balance/Charter Plus
- United Healthcare Choice/Choice Plus
- United Healthcare Core/Core Essential
- United Healthcare Navigate/Navigate Plus/Navigate Balanced
- United Healthcare Option PPO
- United Healthcare Passport Connect Choice/Choice Plus
- United Healthcare Passport Connect Options PPO
- United Healthcare Select/Select Plus
- United Healthcare Shared Services - Harvard Pilgrim/UHC Options PPO Network
- United Medical Resources (UMR)
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*Duke HomeCare and Hospice and mental health providers do not participate with the plan.
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**Duke Health does not participate in UHC plans on the Health Insurance Marketplace.
Before scheduling your appointment, we strongly recommend you contact your insurance company to verify that the Duke Health location or provider you plan to visit is included in your network. Your insurance company will also be able to inform you of any co-payments, co–insurances, or deductibles that will be your responsibility. If you proceed in scheduling an appointment and your health insurance benefits do not participate with Duke, your out of pocket liability may be higher. We will contact you regarding your coverage and patient liability. If you are uninsured, learn more about our financial assistance policy.
External Relationships
- Alphatech Inc
- Bioventus
- DePuy Spine (Johnson & Johnson)
- Innovations 4 Surgery, LLC
- NuVasive, Inc.
- Orthopaedic Innovations, LLC
- Trackx Technology LLC