Meet Dr. Sani Roy

Dr. Sani Roy was thrilled to join the Cook Children's family in 2016, and she cares for children with a variety of common and complex endocrine disorders. Dr. Roy values educating, encouraging, and empowering her patients and their families.

Dr. Roy grew up in the Dallas area and she knew from a young age that her calling in life was to be a doctor. As a child, she loved using the tools from her doctor kit to make her family and friends feel better. She rediscovers that same childhood joy each day as she cares for her patients.

During her medical school and residency training at UT Southwestern, Dr. Roy discovered her fascination with endocrinology and her passion for pediatric patients. Dr. Roy then spent three years training in pediatric endocrinology at The Children's Hospital of Philadelphia, where she was heavily involved in both clinical care and a number of academic endeavors including presenting her research at numerous local and national scientific conferences. In 2015, Dr. Roy was a recipient of the Endocrine Society's Endocrine Scholars Award in Growth Hormone Research. She received a Certificate of Clinical Research from the Perelman School of Medicine at the University of Pennsylvania.

Dr. Roy has published many papers in the areas of childhood growth and body composition and written textbook chapters on pediatric obesity and metabolic syndrome. She has been named for several years as a Texas Monthly Super Doctor-Rising Star. Dr. Roy received an Endowed Chair from Cook Children's in 2022 for Prader-Willi syndrome. In addition to serving as the director of the Multidisciplinary Prader-Willi Wellness, Education, and Research Center, Dr. Roy continues to see patients with all varieties of endocrine conditions. She cherishes the connections she forms with her patients and families as much as she loves evaluating and caring for their endocrine medical needs.

Outside of medicine, Dr. Roy enjoys spending time with her husband and two boys by relaxing at home, exploring a local park, or sampling the great culinary options in DFW (especially Tex-Mex). She is an accomplished singer and also enjoys yoga, tennis, being involved with her church community, and traveling across the United States to visit her large extended family.

Dr. Roy is very compassionate and loving toward my child. She obviously cares. That means a great deal to me as a mom. – Patient family

Services

  • Pediatric endocrinology

Reviews

Average rating:

4.8
Questions were addressed
4.9
4.9 (48)
Provider explained things clearly
4.9
4.9 (47)
Likelihood of recommending this provider
4.8
4.8 (48)
Trust/confidence in physicians
4.8
4.8 (48)

What our families say

  • November 24, 2025

    Dr Sani Roy is an incredible doctor who listens to her patients and takes good care of them.

  • November 21, 2025

    The staff were outstanding! From reception, to nurses, and Dr. Roy, my daughter felt safe and cared for. When Dr. Roy left the room, my daughter said, "I really like her!" She was very nervous about her appointment, but the entire staff went out of their way to calm her fears and make her feel comfortable. This was the best doctor's visit we have ever had! Thank you!

  • October 15, 2025

    The staff was really good at putting [...] at ease when getting her flu shot and having blood work done

  • October 14, 2025

    I love if the staff speciality doctor, she is very kidness, she worries about my Health child

  • September 16, 2025

    Great experience overall

  • September 16, 2025

    All of the staff were kind, friendly, and an attentive.

  • September 10, 2025

    Very good attention to us

  • September 02, 2025

    Dr Sani Roy has represented a smooth transition from Dr [...] care. She has instilled trust and courtesy with each visit and we'll be sad to transition out of pediatric care.

  • August 17, 2025

    Dr Roy spent over half an hour with my daughter. She answered every question with great detail.

  • August 15, 2025

    The Dr. (Endocrinologist) Was excellent.

  • July 25, 2025

    Dr Roy and the phlebotomist [...] were both amazing! They handled [...] questions (and fear of having blood drawn) just great!!

  • July 24, 2025

    Dr. Sani roy provided all the information about our concerns and worries.

  • July 24, 2025

    Dr. Sani roy made us worry free and comforted us of baby situation which can be curable with safe medication.

  • July 22, 2025

    Very good

  • July 22, 2025

    Very good

  • July 16, 2025

    Dr. Roy was excellent.

  • July 04, 2025

    Positive visit.

  • July 04, 2025

    Everyone from the receptionist to all the medical providers were polite and attentive.

  • June 14, 2025

    It was a blessing to have this as an option

  • June 14, 2025

    It was a very good experience and the doc talked us through making adjustments to her insulin levels that we made while visiting. It was helpful

  • May 30, 2025

    All the staff and doctors are extraordinary.

  • May 13, 2025

    Always a pleasant visit

  • April 22, 2025

    Very good experience

  • April 22, 2025

    The doctor we saw was very attentive and wonderful.

  • March 14, 2025

    All good experience I feel comfortable with cooks hospital helping us and our son.

  • March 14, 2025

    Dr Roy is such a good doctor I always leave so happy with the information given to me and the nurse that brought us to the exam room was very sweet

  • March 11, 2025

    I thought dr Sani Roy was very good with my daughter

  • March 11, 2025

    She spoke with my daughter on her level, in such a way that my daughter left trusting that she was cared for, and that there is hope.

  • February 05, 2025

    Very good

  • January 30, 2025

    Dr. Roy is AMAZING with [...] and family. She recognizes the efforts made to keep [...] healthy and made reasonable suggestions. The entire team provided us with great feedback and advice for the future.

Publications

Publications:
  • Hawkes C.P., Roy S.M., Dekelbab B., Frazier B.,Grover M., Haidet J., Listman J.,Madsen S.,Roan M., Rodd C., Sopher A., Tebben P., Levine M.A. 2021. Hypercalcemia in Children Using the Ketogenic Diet: A Multicenter Study. Journal of Clinical Endocrinology and Metabolism. PMID: 33124662.
  • Awad, A., Mathew, S., Katirji, B. 2010. Acute Motor Axonal Neuropathy in Association with Sjogren Syndrome. Muscle Nerve; 42:828-830. PMID: 20976785.
  • Roy, S.M**.**, Buchanan, G.R., Crary, S.E. 2013. Splenectomy in Children with "Mild" Hereditary Spherocytosis. Journal of Pediatric Hematology Oncology; 35(6)430-3. PMID: 23823113.
  • Roy, S.M**.**, Chesi, A., Mentch, F., Xiao, R., Chiavacci, R., Mitchell, J.A., Kelly, A., Hakonarson, H., Grant, S.F., Zemel, B.S., McCormack, S.E. 2015. Body Mass Index (BMI) Trajectories in Infancy Differ by Population Ancestry and May Presage Disparities in Early Childhood Obesity. The Journal of Clinical Endocrinology and Metabolism. PMID: 25636051.
  • Coughlin, C.C., Roy, S.M., Arkin, L.M., Adzick, N.S., Yan, A.C., De Leon, D.D., Rubin, A.I. 2015. Iatrogenic Necrolytic Migratory Erythema in an Infant with Congenital Hyperinsulinism. Pediatr Dermatol. PMID: 26648573.
  • Mitchell, J.A., Chesi, A., Elci, O., McCormack, S.E., Roy, S.M**.**, Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Kelly, A., Grant, S.F.A., Zemel, B.S. 2015. Genetic Risk Scores Implicated in Adult Bone Fragility Associate with Pediatric Bone Density. J Bone Miner Res. PMID: 26572781.
  • Mitchell, J.A., Chesi, A., Elci, O., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Kelly, A., Grant, S.F.A., Zemel, B.S. 2016. Rare EN1 Variants and Pediatric Bone Mass. J Bone Miner Res. PMID: 26970088.
  • Mitchell, J.A., Chesi, A., Elci, O., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Kelly, A., Grant, S.F., Zemel, B.S. 2016. Physical Activity Benefits the Skeleton of Children Genetically Predisposed to Lower Bone Mineral Density in Adulthood. J Bone Miner Res. PMID 27172274.
  • Roy, S.M., Spivack, J.G., Faith, M.S., Chesi, A., Mitchell, J.A., Kelly, A., Grant, S.F., McCormack, S.E., Zemel, B.S. 2016. Infant BMI or Weight-for-Length and Obesity Risk in Early Childhood. Pediatrics. PMID: 27244803.
  • McCormack, S.E., Chesi, A., Mitchell, J.A., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Mahboubi, S., Winer, K.K., Grant, S.F.A., Zemel, B.S. 2017. Relative Skeletal Maturation and Population Ancestry in Non-Obese Children and Adolescents. J Bone Miner Res. PMID:27419386.
  • Chesi, A., Mitchell, J.A., Kalkwarf, H.J., Bradfield, J.P., Lappe, J.M., Cousminer, D.L., Roy, S.M., McCormack, S.E., Gilsanz, V., Oberfield, S.E., Hakonarson, H., Shepherd, J.A., Kelly, A., Zemel, B.S., Grant, S.F. 2017. A Genome-Wide Association Study Identifies Two Sex-Specific Loci, at SPTB and IZUMO3, Influencing Pediatric Bone Mineral Density at Multiple Skeletal Sites. J Bone Miner Res. PMID: 28181694.v
  • McCormack, S.E., Cousminer, D.L., Chesi, A., Mitchell, J.A., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Winer, K.K., Kelly, A., Grant, S.F.A., Zemel, B.S. 2017. JAMA Pediatr. PMID 28672287.
  • Cousminer, D.L., Mitchell, J.A., Chesi, A., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Kelly, A., McCormack, S.E., Voight, B.F., Zemel, B.S., Grant, S.F. 2017. Genetically Determined Later Puberty Impacts Lowered Bone Mineral Density in Childhood and Adulthood. PMID 29068475.
  • Roy, S.M., Fields, D.A., Mitchell, J.A., Hawkes, C.P., Kelly, A, Wu, G.D., DeRusso, P.A., Elovitz, M.A., Ford, E., Drigo, D., Zemel, B.S., McCormack, S.E. 2019. Body Mass Index is a Better Indicator of Body Composition than Weight-for-Length at Age 1 Month. The Journal of Pediatrics. PMID 30268397.
Chapters:
  • Roy, S.M., Rustico, S. Kublaoui, B. (2016). Prevention and Treatment of Childhood Obesity and Metabolic Syndrome. In: Ahima, R, (Ed.) Metabolic Syndrome: A Comprehensive Textbook. 1st ed. Springer International Publishing AG Switzerland.
  • Roy, S.M., Kelley, J., Hanley, P., McCormack, S.E., Grant, S.F.A. (2016) Genetic Causes of Childhood Obesity. In: Goran, M, (Ed.) Childhood Obesity: Causes, Consequences, and Intervention Approaches. 1st ed.
Abstracts:
  • Roy, S.M., Thornton, P.T., The Endocrine Manifestations of Maternal UPD 14, a Prader-Willi-like Syndrome. Poster presentation to be given at the 2020 Pediatric Endocrine Society Annual Meeting, April 24-27, 2020, Fort Worth, TX. Conference canceled. Hormone Research in Pediatrics 2020.
  • Topham, E., Roy, S.M., Hamilton, L., Wilson, D. Does Cholesterol Screening in Prader-Willi Syndrome Represent an Opportunity to Reduce Cardiovascular Disease Risk? Pediatric Endocrine Society. Virtual Conference due to COVID-19 pandemic, April 28-May 1, 2022. National Lipid Association Annual Conference. Scottsdale, AZ, June, 2022. Foundation for Prader-Willi Research, Research Symposium. Chicago, IL, September 29-30, 2022.
  • Roy, S.M., Rafferty, D., Hamilton, L., Bohonowych, J., Strong, J., Ambartsumyan, L., Glass, R., Cantu, S., Scheimann, A., Duis, J. Feeding Tube Use and Complications in Prader-Willi Syndrome: Data from the Global PWS Registry. Foundation for Prader-Willi Research, Research Symposium. Chicago, IL, September 29-30, 2022.
  • Roy, S.M., Xiao, R., Mentch, F., Chiavacci, R., Hakonarson, H., Zemel, B., Grant, S.F.A., McCormack, S.E. Peak Body Mass Index (BMI) in Infancy and Childhood Growth in a Multi-Ethnic Cohort. The Children's Hospital of Philadelphia Research Day, Philadelphia, PA, February, 2014. Eastern Society for Pediatric Research Oral Platform Presentation, Philadelphia, PA, March, 2014. Pediatric Endocrine Society Presidential Poster Session and General Poster Session, Vancouver, Canada, May, 2014.
  • Roy, S.M., Lord, K., Pinney, S.E., De Leon, D.D. Progression of 6q24 Transient Neonatal Diabetes Mellitus to Hypoglycemia. Eastern Society for Pediatric Research General Poster Session, Philadelphia, PA, March, 2014. Pediatric Endocrine Society General Poster Session, Vancouver, Canada, May, 2014
  • Haller, M., Cengiz, E., Tamborlane, W., Roy, S., Gregg, B., Thomas, I., Thambundit, A., Buckingham, B., Beck, R., Ruedy, K., Kollman, C., and Connor, C. 2014. Frequency of Self-Monitoring of Blood Glucose (SMBG) and A1c levels in Youth with Type 2 Diabetes (T2D): Data from the Pediatric Diabetes Consortium (PDC) T2D Registry. American Diabetes Association General Poster Session. San Francisco, CA, June, 2014.
  • Roy, S.M., Spivack, J.G., Faith, M.S., Chesi, A., Mitchell, J.A., Grant, S.F.A., Zemel, B.S., McCormack, S.E. Concordance Between Weight-for-Length and BMI Under Age 2 Years in a Large, Longitudinal, Multi-Ethnic Cohort. The Children's Hospital of Philadelphia Research Day Poster Session, Philadelphia, Pennsylvania, February, 2014. The Endocrine Society Presidential Poster Competition and General Poster Session, San Diego, California, March, 2015. The Eastern Society for Pediatric Research General Poster Session, Philadelphia, Pennsylvania, March, 2015.
  • Xiao, R., Roy, S.M., Chesi, A., Mentch, F., Chiavacci, R., Mitchell, J.A., Kelly, A., Hakonarson, H., Grant, S.F.A., Zemel, B.S., McCormack, S.E. Comparing Methods of Modeling Individual Infancy Growth Curves. International Chinese Statistical Association Oral Platform Presentation, Fort Collins, CO, June, 2014.
  • Roy, S.M., Coughlin, C.C., Adzick, N.S., Yan, A.C., Rubin, A.I., De Leon, D.D. Iatrogenic Necrolytic Migratory Erythema in an Infant Receiving Glucagon Therapy for Congenital Hyperinsulinism (HI). The Endocrine Society General Poster Session, San Diego, California, March, 2015.
  • Mitchell, J.A., Chesi, A., Elci, O., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shephard, J.A., Kelly, A., Zemel, B.S., Grant, S.F.A. 2014. The Skeletal Benefits of Physical Activity in Childhood are Dependent on Genetic Variation at Known Bone Density Loci. The Endocrine Society Platform Presentation, San Diego, California, March, 2015. The Cold Spring Harbor Laboratory Exercise Science and Health Meeting Platform Presentation, Cold Spring Harbor, New York, March, 2015.
  • McCormack, S., Roy, S., Chesi, A., Mitchell, J., Kalkwarf, H., Lappe, J., Gilsanz, V., Oberfield, S., Shepherd, J., Mahboubi, S., Kelly, A., Grant, S., Zemel, B. Skeletal Maturation, Population Ancestry, and Body Composition in Non-Obese, Pre-Pubertal Children. The Endocrine Society General Poster Session, San Diego, California, March, 2015. American Society for Bone and Mineral Research Oral Platform Presentation, Seattle, Washington. October 11, 2015.
  • Chesi, A., Kalkwarf, H.J., Mentch, F.D., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Bradfield, J.P., Mahboubi, S., Roy, S.M., Mitchell, J.A., Chiavacci, R.M., Kelly, A., Hakonarson, H., Zemel, B.S., Grant, S.F.A, McCormack, S.E. 2014. Loci Influencing Skeletal Age in Children and Adolescents Identified Through a Trans-ethnic Appraisal of Both Common and Rare Genetic Variants. The Endocrine Society General Poster Session, San Diego, California, March, 2015.
  • Basile, K., Chesi, A., Mitchell, J., McCormack, S., Roy, S**.**, Kalkward, H., Lappe, J., Gilsanz, V., Oberfield, S., Shepherd, J., Kelly, A., Zemel, B., Grant, S. Multiple GWAS-Implicated Adult Height Loci Operate in the Context of Pediatric Bone Mineral Density and Content Determination. The Endocrine Society Platform Presentation, San Diego, California, March 2015.
  • Mitchell, J.A., Chesi, A., Winer, K.K., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shephard, J.A., Kelly, A., Grant, S.F.A., Zemel, B.S. Skeletal Benefits of Physical Activity in Childhood May be Greatest for Males with Lower Bone Mineral Content (BMC) and Density (BMD). American Society for Bone and Mineral Research-Pediatric Bone and Mineral Working Group Session Oral Platform Presentation, Seattle, Washington. October 11, 2015.
  • Mitchell, J.A., Chesi, A., Elci, O., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shephard, J.A., Kelly, A., Zemel, B.S., Grant, S.F.A. 2014. Pediatric Bone Density is Influenced by Physical Activity and Genetic Variation at Known Bone Mineral Density Loci. American Society for Bone and Mineral Research Oral Platform Presentation, Seattle, Washington. October 11, 2015.
  • Roy, S.M., Ford, E.G., Drigo, D.C., Ma, J., Medoff-Cooper, B., Shults, J., Gerber, J.S., Bushman, F.D., Elovitz, M.A., DeRusso, P.A., Berkowitz, R.I., Wu, G.D., McCormack, S.E., Zemel, B.S. Infant Sucking Intensity, Weight Gain, and Adiposity in the First Four Months of Life. Endocrine Society. Boston, Massachussetts. April, 2016. Eastern Society for Pediatric Research Oral Platform Presentation, Philadelphia, Pennsylvania. March 12, 2016. Pediatric Endocrine Society Oral Platform Presentation, Baltimore, Maryland. May 1, 2016.
  • Cousminer, D.L., Chesi, A., Mitchell, J.A., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Voight, B.F., Oberfield, S.E., Shepherd, J.A., Kelly, A., McCormack, S.E., Zemel, B.S., Grant, S.F.A. Individual Variants and Genetic Risk Score for Age at Menarche Associate with Pediatric Bone Mineral Density. Endocrine Society. Boston, Massachussetts. April, 2016.
  • Mitchell, J.A., Chesi, A., McCormack, S.E., Roy, S.M., Kalkwarf, H.J., Lappe, J.M., Gilsanz, V., Oberfield, S.E., Shepherd, J.A., Kelly, A., Zemel, B.S., Grant, S.F.A. A Rare Variant Near EN1 Associates with Bone Mass in Females but Not Males. Endocrine Society. Boston, Massachussetts. April, 2016.

Endowed Chair Recipient

Research: Multidisciplinary Prader-Willi Wellness, Education and Research (MPoWER) Center

Dr. Roy will develop and manage a comprehensive program for the treatment of Prader-Willi syndrome, the most common life-threatening genetic obesity syndrome. The MPoWER Center will engage in novel research, education and patient advocacy while giving families access to an expert multidisciplinary team and avenues for family support, establishing Cook Children's as a Center of Excellence in the management of this vulnerable population.

Explore program

Education

  • Medical school:
  • 2006-2010 M.D., University of Texas Southwestern Medical School
  • Residency:
  • 2010-2011 Intern in Pediatrics, University of Texas Southwestern Medical Center
  • 2011-2013 Resident in Pediatrics, University of Texas Southwestern Medical Center
  • Board certifications:
  • American Board of Pediatrics
  • American Board of Pediatric Endocrinology

Affiliations

  • Pediatric Endocrine Society,Foundation for Prader-Willi Research,Prader-Willi Syndrome Association,Cook Children's Physician Network

Recognitions

  • Texas Monthly Super Doctors Rising Star: 2019-2022
  • Cook Children's Medical Center, Senior Consultant Designation: 2020
  • Cook Children's Endowed Chair for Prader-Willi Syndrome: 2022

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