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Dana I. Williams, MD

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Medical Director, Feeding Disorders Clinic; Medical Director, Aerodigestive Digestive Program



Areas of Expertise

  • Aerodigestive and Feeding Disorders; Gastrointestinal problems in children with autism and developmental disabilities; Esophageal impedance and motility; Capsule endoscopy; Graduate Medical Education


Phoenix Children's Hospital - Main
1919 E. Thomas Rd., Phoenix, Arizona 85016


Education & Training

Board Certification

Pediatric Gastroenterology; General Pediatrics

Medical School / Education

Carol Davila School of Medicine, Bucharest, Romania


New York Presbyterian Hospital, Weill Cornell Medical Center, New York, NY(Pediatrics and Pediatric Gastroenterology)


New York Presbyterian Hospital, Weill Cornell Medical Center, New York, NY(Pediatric Gastroenterology)

Professional Affiliations

American Academy of Pediatrics; North American Society of Pediatric Gastroenterology and Nutrition; Fellow, American Academy of Pediatrics


  • Best Doctors in America 2007, 2008, 2009, 2010, 2011,2012,2013,2014,2015; Above and Beyond Award - Autism Society

Research & Publications

Manley, K., Pope, A. MD, Gruessner, A.C. MS PhD, Jones, A. MD, Carvajal, B. MD, Wittke, G., Rose, M. MD, Schroeder, S. MD, Ursea, D. MD, The seasonality of eosinophilic esophagitis flares in children and adolescents in Arizona, PCH Research Day 2015

Frantz G., Woodward P., Schraff S., Page N., Schroeder S., Williams H., Woodward J., Rao A. and Ursea Williams D.; Poster Title: The Role of Injection Laryngoscopy (IL) in Treating Deep Interarytenoid Notch (DIN) associated Dysphagia in Young Children, PCH research Day 2015

Caitlin Williams BS, Kelly VanDahm MS CCC-SLP, Kristina Leinwand DO, Janet Iurilli RD, Elizabeth Linos, OTD, Dana I. Ursea MD: Outcomes of a Medical Multidisciplinary Outpatient Intensive Feeding Therapy Program as Compared to Traditional Weekly Feeding Therapy in Children with Enteral Feeding Tube Dependence, PCH Research day 2014, first prize resident/Medical student category

Clake-Leven P, Ursea D- Use of Neuroelectrical Stimulation in treatment of Pediatric Dysphagia, 5 Case Studies for Quality Improvement, PCH Research Day, June 2013

Abragimov A, Galloway D, Rose M, Ursea D, Gastric Pseudopolyps - A Manifestation of Eosinophilic Gastroenteritis in Children, PCH Research Day, June 2013

Ursea D, Kelleher K, Moore D, Bannister S, Green M, Filimon P, Caputo G- Chief Resident Mentorship of PL-2 Pediatric Residents, APPD San Antonio, poster presentatation, 2012

Bode R, Clerke D, Ursea D, Caputo G, Individualized Resident Education: Baseline Resident Attitudes and Description of a Track Curriculum, poster presentation, APPD San Antonio, 2012 and PCH research Day 2013

Beasley A, Carter J, Ursea D, Bode R- Family Centered Rounds: A Model for Quality Improvement, PCH Research Day 2013

Fernando S, MD, McOmber M, MD, Pasternak B, MD, Ursea D, MD, Silber G, MD, Pediatric Post-Endoscopy Outcomes: a Prospective Review of Short Term Complications, Poster presentation, NASPGHAN National Meeting, Orlando, October 2011

Sultana Z, Carpentieri D, Silber G, Shub M, Ursea D Clinical Outcomes in Children with Microscopic Colitis- Poster presentation, NASPGHAN Annual Meeting, San Diego, 2008

Chen K, Ursea D, Posnett DN- Inflammatory Bowel Disease (IBD) in IL-10 knockout mice: variable phenotypic expression with Helicobacter hepaticus (HH) versus Mycobacterium avium complex (MAC) and subspecies paratuberculosis (MPT) -12th International Congress of Immunology and 4th Annual Conference of FOCIS, 2004

Conklin LS, Greifer M, Newton K, Chen K, Bostwick S, Ursea D, Gastroesopageal Reflux and Apparent Life threatening events: Is there a relationship?, 2nd World Congress in Pediatric Gastroenterology and Nutrition, Paris 2004

Greifer M, Chen KD, Newton KP, Tron ED, Ursea D, Illueca M - Infantile Gastroesphageal Reflux Disease: Natural History and Therapies, 2nd World Congress in Pediatric Gastroenterology and Nutrition, Paris 2004

Kless-Siegel S, Newton K, Chen K, Greifer M, Illueca M, Ursea D, - Association of Oxygen desaturation and bradycardic events with acid reflux episodes during 24 hour pH probe evaluation in premature neonates, 2nd World Congress in Pediatric Gastroenterology and Nutrition, Paris 2004

Chen KD, Newton K, Greifer M, Buchmiller-Crair T, Petrovic L, Ursea DI, - Colonic strictures and obstruction related to cow's milk protein allergic enterocolitis- A case report, 2nd World Congress in Pediatric Gastroenterology and Nutrition, Paris 2004

Chen K, Ursea D, Posnett D- Can Mycobacteria Avium Complex (MAC) subspecies Paratuberculosis (PMT) cause inflammatory bowel disease in IL-10 knockout mice, oral presentation and poster of distinction, 2nd World Congress in Pediatric Gastroenterology and Nutrition, Paris 2004

Manfredi M, Chen K, Slowinska B, Vladu S, Liu S, Posnett DN, Wilson R and Ursea D - Mycobacterium Avium Species (MAC) subspecies paratuberculosis (MPT) in Children with Crohn's disease colitis identified with real-time Polymerase in Reaction (PCR), oral presentation and abstract NASPGHAN annual meeting, Montreal, JPGN, 37 (4) suppl

Perlman S, Tan JY, Jones J, Chen K, Tron E, Illueca M, Ursea D, - Allergic proctitis in infants and children with constipation, Poster of Distinction, NASPGHAN annual meeting, Montreal 2003, JPGN, 37(4), suppl and submitted to JPGN September 2006

Tron E, Greifer M, Tan JY, Jones J, Chen K, Ursea D, - Nickel allergy associated with a palatal expander (PE)Presenting as dysphagia, oral presentation/poster, NASPGHAN annual meeting, Montreal 2003, JPGN, 37(4) suppl

Ursea D, Spigland N, Crair T, Greifer M, Illueca M, Harbison M, Delayed Gastric Emptying causes feeding failure in children born small for gestational age, with in utero growth retardation and Russel Silver Syndrome, abstract 101311,Digestive Disease Week, Orlando, May 2003, Gastroenterology, suppl

Chen K, Ursea D, Illueca M-Early Endoscopy in Pediatric upper Gastrointestinal Bleeds, JPGN, 35(4),2001 suppl

Ursea D, Siaw EKO, Moustafellos E, Illueca M - Treatment of Crohn's Disease without Steroids in Children- A Three Step Approach Using Antibiotics, Poster 888, World Congress on Pediatric Gastroenterology and Nutrition, Boston, August 2000, JPGN 34 (3), 2000 suppl

Ursea D, Bernal A, Filomino M, Posnett DN - Evidence for a bacterial superantigen in a 5 year old with ToxicShock Syndrome - Implications in management and host resistance- Oral presentation, The New York Academy of Medicine, May 26, 1999, Pediatric Resident Night

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