Meet Our Faculty

Patricia Dickson, MD
Division Chief

Katherine Abell, MD
Dustin Baldridge, MD, PhD
Jonathan Cooper, PhD
Catherine Gooch, MD
Gary Gottesman, MD
Jorge Luis Granadillo De Luque, MD, MSc
Dorothy K. Grange, MD
Jennifer Heeley,  MD
Beth A. Kozel, MD, PhD
Shalaka Mulherkar, PhD
Hoanh Nguyen, MD
Marco Sardiello, PhD
Jaiprakish Sharma, PhD
Marwan Shinawi, MD
Marcia C. Willing, MD, PhD

Clinical Nurse Coordinator

Dawn Easterlin, RN, BSN
Angie Nenninger, RN, BSN

Nurse Practitioners

Liz Hall, MSN, RN, NP-C, CPN
Kate Leestma, CPNP
Kathleen Sisco, RN, MSN, CPNP
Laura White, MSN, RN, CPNP-PC

Genetic Counselors

Susan Jones, MS, CGC
Linda Manwaring, MS, CGC
Rachita Nikam, MS, CGC
Leia Peterman, MS, CGC
Rachel Slaugh, MS, CGC
Tomi Toler, MS, CGC
Samantha Toy, MS, CGC

Genetic Counseling Assistants

Bethany Barr
Victoria Tate

Metabolic Dietitians

Jade Caldwell, MS, RD, LD
Liz Toolan, MS, RD, LD

Genetics and Genomic Medicine

Now Offering Virtual Visits

Life seems very different during these challenging times, but Washington University Department of Pediatrics is here to care for your child’s needs, just as we’ve always been. With virtual visits, you can see your doctor without a visit to the office. Our staff will walk you through every step of the process. Learn more:

The health of our patients and staff is our top priority. During the COVID-19 pandemic, here is what we are doing to keep everyone safe during your office visit:

  • We require all patients and visitors over 2 years old to wear a mask.
  • Each patient may have two visitors accompany them.
  • You will be screened for symptoms of COVID-19 when you arrive for your appointment. You may be asked to reschedule if symptoms are present.
  • Practice social distancing and stay at least 6 feet apart from others when possible.
  • If you have a MyChart account, please complete the online check-in and payment before your visit.

The Division of Genetics and Genomic Medicine takes pride in providing prompt, comprehensive, and compassionate state-of-the art clinical care to patients and their families. We provide treatment to patients at St. Louis Children’s Hospital and Barnes-Jewish Hospital on the Washington University School of Medicine medical campus. St. Louis Children’s Hospital is recognized as one of the best Children’s Hospitals in the United States, and Washington University School of Medicine is consistently ranked as one of the top medical schools in the country. We are actively involved in teaching genetics and genomic medicine to medical students at Washington University, residents and postgraduate fellows on our medical campus, and physicians and other healthcare providers at Washington University and in the greater St. Louis community.

We provide care for children and adults with a variety of medical problems, including,

  • Birth defects
  • Abnormalities of newborn screening
  • Inborn metabolic diseases
  • Genetic syndromes
  • Familial cancer syndromes
  • Chromosomal abnormalities
  • Many other genetic disorders

Mission Statement

Providing superior care for all who need professional services in clinical genetics.

Preparing all those educated by the Division to excel in medical genetics.

Advancing basic and applied knowledge of genetics.

Contact Us

Jennifer Heeley, MD
Residency Program Director

Marwan Shinawi, MD
Medical Biochemical Fellowship Program Director &
Pediatrics/Genetics Residency Program Director

Elizabeth Yoder
Residency Program Coordinator
(314) 454-2861 (Voice)

Patients and Parents
(314) 454-6093 (Voice)
(844) 965-9624 (Fax)

Physician Referrals
(314) 454-6093 (Voice)
(844) 965-9624 (Fax)

U.S. Mail
Washington University
School of Medicine
Department of Pediatrics
Division of Genetics and
Genomic Medicine
660 S. Euclid Ave.,
MSC: 8116-0043-02
St. Louis, MO 63110-1093


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One Brookings Drive, St. Louis, MO 63130