Meet Our Doctors
Lainie Baumgarten-Hoover, M.D.
Dr. Lainie Baumgarten-Hoover has practiced at THH Pediatrics since 1997. She completed her training at the University of Michigan and moved to Maryland to work as a general pediatrician. She enjoys working together with families and assisting in the development and health of children.
Joseph Hsu, M.D.
Dr. Joseph Hsu was raised in Rockville, Maryland and returned to Montgomery County in 1995 to work as a general pediatrician. He has been with THH Pediatrics since 1999.
David Granger, M.D.
Dr. David Granger was born and raised in Metro-Detroit. All of his college education took place in Michigan, including a Bachelor of Arts from Albion College, Master of Public Health in Health Policy from the University of Michigan, and Doctor of Medicine from Wayne State University in Detroit.
Jayme Holstein, M.D.
Dr. Jayme Holstein joined THH pediatrics in 2005. She was born and raised in Baltimore, Maryland, where she attended Pikesville High School. After graduating from Duke University in 1995, she returned home to attend the University of Maryland School of Medicine.
Mun-Ting Liu, M.D.
Dr. Mun-Ting Liu was born and raised in Washington, DC, and attended George Washington University for both her undergraduate and medical degrees. After medical school graduation, she completed her Pediatric Residency at Virginia Commonwealth University in Richmond, Virginia.
Matt Fishel, D.O.
Dr. Matt Fishel was born and raised in Baltimore, Maryland. He received his undergraduate degree from Trinity College in Connecticut, after which he received a Master’s Degree in Physiology from Georgetown University.
Mia Sidhu, M.D.
Dr. Manpreet Sidhu was born and raised in Northern California and completed her pediatric residency at the University of Medicine and Dentistry in Newark, New Jersey in 2010. Dr. Sidhu moved to the DC Metro region and obtained her board certification in pediatrics, and joined a private pediatric practice in VA.
Sandra Takai, M.D. – Retired
Dr. Sandra Takai had practiced pediatrics in the Gaithersburg-Germantown area since 1986. She is the founding partner of THH and now pediatrician emeritus. She trained at the University of Maryland School of Medicine and Sinai Hospital of Baltimore, where she served as Chief Resident.
Shara Feltz, Nurse Practitioner (N.P.) & Nurse Manager
Shara Feltz, CRNP was born and raised in central Pennsylvania. She graduated from Pennsylvania State University with a Bachelor of Science in Neuropsychology along with minors in Natural Science, Biology, and Health Policy & Administration.