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Pediatric Hospital Medicine Fellowship Program

Jamie Librizzi, MD, MSHS
Program Director, Pediatric Hospital Medicine Fellowship

Jamie Librizzi, MD grew up in Essex, Vermont, and graduated from Dartmouth College with a Bachelor of Arts in Biology. She then returned to Vermont to attend the University of Vermont College of Medicine. She completed her internship and residency training at Hasbro Children’s Hospital/Brown University in Providence, Rhode Island. During residency, she was involved in research on bronchiolitis and serious bacterial infection in hospitalized children resulting in the first authorship of a publication in Hospital Pediatrics.  Following residency, she chose to pursue fellowship training in hospital medicine at Children’s National Health System in Washington, DC. During the three-year fellowship, she completed a Master’s in Clinical and Translational Research from George Washington University. Her research interest in fellowship included pediatric hospital medicine core competency achievements of fellowship and non-fellowship trained early-career hospitalists, resulting in the first authorship of a publication in the Journal of Hospital Medicine. She was also named Fellow of the Year in 2013.  Following fellowship, in 2015, she joined Phoenix Children’s.

After joining Phoenix Children’s in 2015, she was named the fellowship program director and subsequently grew the program from 1 fellow to 5 fellows (soon to be 6!). She is also an active member of the national PHM Fellowship Program Director's Council, serving as the Chair of the Curriculum Committee from 2016-2021. In addition to her work with the fellowship program, she is also involved in residency education including creating an inpatient simulation curriculum. She has been named Faculty Teacher of the month twice by the residents and awarded the annual faculty Teaching Award voted on by the residents in 2017. She has also served as the site lead for two national QI Collaboratives, REVISE (Reducing Excessive Variability in Infant Sepsis Evaluation) and SOFI (Standardization of Fluids in the Inpatient Setting). Both these projects led to creating local clinical pathways and order sets for Neonatal Fever and IV Fluids. Her current research projects include mentorship of the current fellows’ scholarly projects as well as a longitudinal qualitative project examining autonomy in PHM fellowships.  

Nehal Thakkar, MD
Associate Program Director

Nehal Thakkar, MD grew up in Mesa, Arizona and graduated from Union College in Schenectady, New York with a Bachelor of Science in Biology and a Minor in Music. She attended Union Graduate College and graduated in 2010 with a Masters of Business Administration in Health Care Administration and Albany Medical College in Albany, New York, graduating in 2014. She completed her internship and residency training at Children’s Hospital of Richmond/Virginia Commonwealth University in Richmond, Virginia.

 During residency, she was involved in research on neonatal sepsis and non-accidental trauma. She received the “House Award for Excellence in Hospital Medicine” in 2017. She went on to pursue and complete a Pediatric Hospital Medicine Fellowship Program at Dell Children’s Medical Center/University of Texas at Austin in Austin, Texas. During her training, she focused on medical education and improved communication in health care, developing a curriculum on bedside communication, providing OSCE education, and publishing on teaching scripts for bedside rounds. She developed and led a division journal club and multi-disciplinary case review.

 Following fellowship, she joined Phoenix Children’s Hospital, in 2019, and in 2020, she began serving as the Associate Program Director for the PHM Fellowship. She will direct fellowship education, QI curriculum development, and continue to pursue opportunities in medical student and resident education. She holds the academic appointment of Assistant Clinical Professor of Pediatrics at Creighton University School of Medicine and University of Arizona College of Medicine Phoenix.

Lisa Fox, MD
Division Chief, Hospitalist Division

A Phoenix native, Lisa Fox, DO graduated from Grand Canyon University with a Bachelor of Science in General Biology. She went to medical school at Midwestern University—Arizona College of Osteopathic Medicine in Glendale, Arizona and completed her internship and residency at Phoenix Children’s Hospital/Maricopa Medical Center. She helped develop the Nighttime Curriculum for Phoenix Children’s residents in 2012 and is involved in the development of multiple clinical pathways. She also sits on the Young Physicians Committee of the Arizona chapter of the AAP.


Phoenix Children's Faculty

Kelly Kelleher, MD
Edith Allen, MD
Wendy Arafiles, MD
Vasudha Bhavaraju, MD
Yash Bhatt, MD (MGH)
Kristi Boles, MD
Bo Borch-Christensen, MD
Daxa Clarke, MD
Stephanie Conrad, DO
Alissa Darden, MD
Nima Desai, MD 
Richard Engel, MD
Kelcie Fincham, MD
Sam Flores, MD
Sandra Gage, MD
Anna Gary, MD
Ashley Higashi, MD
Maheshwor Kafle, MD
Jennifer Kovacik, MD
Joseph Mangone, DO
Dustin Rayhorn, MD
Amanda Reynolds, MD
Noreen Ruane, DO
Amanda Scott, MD
Michele Scott, MD
Meera Singavi, MD (MGH)
Sarjita Shukla, MD
David Solomon, MD
Nicolas Staab, MD
Pooja Thimmappa, MD
Raegan Vanderput, MD
Jillian Wall, MD
Brittany Wold, MD

Mercy Gilbert Faculty

Heather Antoine, DO
Shannon Kearl, MD
Gary Morris, MD


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