Timothy Wall, M.D. graduated from Indiana University School of Medicine and completed his residency at Indiana University Medical Center. Dr. Wall served as a physician missionary in Taiwan prior to founding PHA in 1987. He has served as Chairman of the Pediatrics Department at both Edward and Central DuPage Hospitals. He has also served on the Board of the Illinois Chapter of the American Academy of Pediatrics and is President of the CareLink Foundation, a non-profit organization which provides health services for uninsured and underinsured children. Dr. Wall has a special interest in ADHD. He is bilingual in Spanish.

Linda Hamilton, M.D. is an advocate for children with special needs. A 1980 graduate of the University of Oklahoma College of Medicine, she completed her residency at Cardinal Glennon Children’s Hospital before joining PHA in 1993. Dr. Hamilton holds a certificate in specialized care for children from the State of Illinois.

Virginia Kash, M.D. graduated from Loyola University Stritch School of Medicine and completed her residency at Children’s Memorial Hospital in Chicago. Joining PHA in 1998, Dr. Kash has a special interest in teaching expectant parents about the first years of life and early childhood development.

Jihad Shoshara, M.D. earned his medical degree from the University of Chicago Pritzker School of Medicine and completed his residency at Children’s Memorial Hospital in Chicago. He enjoys volunteering at free clinics in Chicago and the suburbs. He is bilingual in Spanish and Arabic.

Sofia Shakir, M.D. graduated from Aga Khan University Medical College in Pakistan in 2000 and served as Chief Resident at Stroger Hospital in Chicago in 2004. She joined PHA in 2005 and has an interest in behavior and development in children. She is bilingual in Spanish, Hindi and Urdu.

Nithya Sunder, M.D. comes to PHA from the University of Illinois College of Medicine, completing her residency at the Medical College of Wisconsin in Milwaukee in 2006. Her areas of special interest include asthma education, safety and childhood injury prevention. She is bilingual in Spanish.

Nancy Thomas, M.D. earned her medical degree from the Baylor College of Medicine and completed her residency at the Baylor affiliated hospitals of Ben Taub and Texas Children’s Hospital in 2006. Dr. Thomas is interested in asthma education, nutrition and childhood obesity. She is bilingual in Spanish.

Mark Brinkman, M.D. received his M.D. at the University of Illinois College of Medicine and was chief resident at the University of Illinois Hospital. He has been in practice for 14 years, first in the Air Force as a pediatrician, and has served our country on humanitarian missions in West Africa, El Salvador and Oman. Dr. Brinkman was the Chief Consultant for Pediatric Services at the Office of the Surgeon General and continues to teach for the Uniformed Services University of Health Sciences in Bethesda, Maryland. He is board certified in pediatrics and in advanced life support.

Laura Uselding, M.D. graduated from the University of Illinois College of Medicine and completed her residency at the University of Chicago’s Comer Children’s Hospital and La Rabida Hospital in 2007. Joining PHA in January 2008, she specializes in infant, child and adolescent female health. Her clinical interests also include infectious disease, nutrition and asthma.

Tara Jackson, M.D. received her medical degree from Duke University and completed her residency at the University of South Florida. Joining Pediatric Health in January, 2009, Dr. Jackson has a special interest in asthma, nutrition and infectious disease. She is bilingual in Spanish.

Tina Smith, M.D. earned her medical degree from Northeastern Ohio Universities College of Medicine. She joins us from the great state of Michigan where she completed her residency at Michigan State University-Sparrow Hospital. Dr. Smith has a special interest in managing asthma and helping children who struggle with obesity.

Martha Strening earned her MSN, CPNP from Rush University. Prior to joining PHA in 1999, Martha worked for 20 years at the DuPage County Health Dept. taking care of mothers and their babies. She is bilingual in Spanish.

Erica Jannisch received her MSN, CPNP from Rush University. Joining PHA in 2003, she is certified in Pediatric Advanced Life Support. Erica has a special interest in children with chronic health issues.

Michelle Maloney received her MSN, CPNP from Rush University. Joining PHA in 2007, she is a faculty member of the Illinois Chapter of the American Academy of Pediatrics office based education programs and has been instrumental in providing insight on nutrition and obesity to researchers from Children’s Memorial Hospital.

Romina Gieseman earned her MSN, CPNP from Rush University. Rejoining PHA in 2009 after spending many years as a clinical instructor and lecturer at Rutgers and Texas Women’s University, PHA welcomes her back to the practice. She is bilingual in Spanish. She hosts an Autism Support Group for Spanish speaking families.