Francis Reynoso Santos, MD

Pediatric Genetics
Primary Office
Address 1131 N 35th Avenue
2nd Floor
Hollywood, FL 33021

About Me

I evaluate children with multiple medical issues to determine if there is an underlying genetic cause. Most of the patients I see have developmental delays and/or birth defects. We take a detailed family history and try to find out if other family members are affected. Often, we need to order genetic testing to confirm a diagnosis.

My main areas of expertise and research are inborn errors of metabolism and congenital disorders of glycosylation. 

I knew early in life that I wanted to be a doctor, and decided I wanted to become a geneticist when I was about 15 years old. I’ve always enjoyed figuring things out, and that’s what you do in genetics every day. I always wanted to work with kids. You advocate for them, but at the same time, they are very strong and can overcome anything. I’m really passionate about what I do and I really enjoy my specialty. I can’t imagine myself doing anything else. It brings me joy to be able to help families and provide them with answers. 

In my free time, I love going to the beach, and I like to travel and learn about new cultures.

Related Medical Services

Meet Dr. Reynoso Santos


  • Universidad Nordestana, 2006
  • Lincoln Medical And Mental Health Ctr Prog, 2013, Pediatrics
  • Lincoln Medical And Mental Health Ctr Prog, 2013, Pediatrics
  • Children's Hospital Of Philadelphia, 2015, Medical Genetics
  • Children's Hospital Of Philadelphia, 2016, Medical Genetics
American Board of Medical Genetics and Genomics-Clinical Genetics
American Board of Pediatrics-Pediatrics
  • Spanish



  • Li, X., Raihan, M.A., Reynoso, F.J., and He, M. 2015. Glycosylation analysis for 
    Congenital disorders of glycosylation. Curr. Protoc. Hum. Genet. 86:17.18.1-17.18.22. 
  • Rebecca Ganetzky, Francis J Reynoso, Miao He: "Biomarkers for congenital disorders of 
    Glycosylation" Biomarkers in inborn errors of metabolism. Garg Uttam (eds.). Elsevier, 2016 
  • Sharma S, Kalish, J, Reynoso FJ, Pradhan M. 2016. An atypical Presentation of a Male with Oral-Facial-Digital Syndrome Type 1 Related Ciliopathy. Reports in Nephrology Volume 2016. Article ID 3181676. 
  • Diana Le Duc, et al, Francis Jeshira Reynoso Santos: Pathogenic WDFY3 variants cause neurodevelopmental disorders and opposing effects on brain size. Brain, Volume 142, Issue 9, Sept 2019
  • Eduardo Calpena, et al ,Francis Jeshira Reynoso Santos: De Novo Missense Substitutions in the Gene encoding CDK8, a Regulator of the Mediator Complex, Cause a Syndromic Developmental Disorder. AJHG Volume 104, Issue 4, 2019.

Professional Organizations

  • American Academy of Pediatrics
  • Penn Alliance of Minority Physicians 
  • American Medical Association


  • “A Genetics Approach to the Child with Intellectual disability” Joe DiMaggio Children’s Hospital 29th Annual Pediatric Symposium, November 2018, Hollywood, FL
  • “The 22q Multidisciplinary Clinic at Joe DiMaggio Children’s Hospital” 22q Network of the Americas Inaugural Meeting: April 2018, Children’s Hospital of Philadelphia (CHOP), Philadelphia, PA.
  • “Clinical Genetics in the Era of Whole Exome and Genome Sequencing” Joe DiMaggio Children’s Hospital Grand Rounds, June 2017.
  • Reynoso FJ, Horton M, Kesewa A, Kalish J, Li D, Hakonarson H, Bloom K, Burton BK, Bucher J, Zackai EH, He M. (July 2015) 
    Phenotypic variability in three patients with PIGN mutations. 
    South Eastern Genetics Group Meeting; Asheville, NC 
  • Reynoso FJ, Li M, Zackai EH, Eberhard M, Khalek N (August 2014) 
    Pallister-Hall Syndrome. Rare Findings: A patient with total colonic aganglionosis and imperforate anus. Another patient with metopic suture fusion. 
    David W. Smith Malformation & Morphogenesis Workshop; Madison, WI 
  • Reynoso FJ, Miller K., Erickson E, Lieber E (May 2013) 
    Ehlers Danlos Syndrome Type II: The Importance of a Genetic Evaluation 
    Lincoln Medical and Mental Health Center Annual Research Competition and Poster Session; Bronx, NY
  • Reynoso FJ, Lieber E, Prokhorov S (May 2012) 
    Chromosomal Microarray Analysis in the Evaluation of Children with Developmental Delay, A Case Report. 
    Lincoln Medical and Mental Health Center Annual Research Competition and Poster Session; Bronx, NY

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