Complementary Prenatal Appointment Request

Meet Our Doctors

  • Julia Emanuel, MD, FAAP

    Dr. Emanuel joined the Pediatrics on Hudson family in summer 2018. She earned her BA from Yale University and her medical degree with distinction from The George Washington University School of Medicine.

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  • Alyssa M. Franzblau, MD, FAAP
    • Boston College, BS
    • Weill Medical College of Cornell University, MD
    • New York-Presbyterian Morgan Stanley Children's Hospital at Columbia University Medical Center, Pediatric Residency

    Dr. Franzblau joined the Pediatrics on Hudson team in September 2019 after working at Montefiore Medical Group and completing her residency training at NYP-Columbia. She received her BS degree from Boston College and earned her medical degree from Weill Cornell Medical College. She is originally from NY and enjoys exploring the city with her husband and young son, talking about cats, and knitting gifts for friends.

  • Khristan Heagle Haller, DNP, CPNP
    • State University of New York at Geneseo, BS
    • Dickinson School of Law of the Pennsylvania State University, JD
    • Columbia University School of Nursing, MS
    • Columbia University School of Nursing, DNP

    Dr. Heagle Haller joined Pediatrics on Hudson in December 2020. She earned her Doctor of Nursing Practice degree from Columbia University. Before becoming a nurse practitioner, she practiced as a labor and employment attorney. She is deeply grateful to have the great joy of working with children and their families. Dr. Heagle Haller lives in Westchester and loves to spend time with her awesome husband, two spunky daughters, and two mischievous dogs. In her free time, she enjoys learning about the impact of nutrition on health and practicing transcendental meditation and pilates.

  • Katherine Hough, MD, FAAP

    Dr. Hough considers taking care of children a privilege. After college, she worked on Wall Street for three years, before becoming a high school biology teacher in the Bronx, NY.

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  • Cynthia Su, MD, FAAP

    Dr. Su is thrilled to be a part of the Pediatrics on Hudson family; she joined in summer 2015 after completing her residency at Columbia. 

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  • Ellen Whalen, MD, FAAP

    Dr. Whalen began working at Pediatrics on Hudson in September 2001, shortly after completing her pediatric residency at Columbia.

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  • Nancy Dodson, MD, FAAP

    Dr. Dodson is board certified in Pediatrics as well as Adolescent Medicine.

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Welcome to Pediatrics on Hudson!

We are board-certified doctors and nurse practitioners serving the Rivertowns and Yonkers for over 25 years. We provide compassionate, personalized, state of the art care to children from birth to age 23 and their families. We are affiliated with NewYork-Presbyterian Morgan Stanley Children's Hospital at Columbia and Maria Fareri Children's Hospital at Westchester Medical Center.  We are the medical directors for the Hastings, Dobbs Ferry, Irvington, Ardsley, and Elmsford school districts.

To help you get acquainted with our practice, we have provided important information on our website. Please browse these pages to learn more about our pediatricians, nurse practitioners, nurses, and office staff. You will also find information regarding office policies, commonly asked questions, new patient forms, and pediatric health resources.

We want to be lifelong partners in your child’s health. We believe the cornerstone to providing exceptional care is an ongoing relationship between health care providers and patients.  We strive to achieve this goal by listening to your questions and concerns. When you choose Pediatrics on Hudson, you can feel confident that you are teaming with knowledgeable, compassionate and professional physicians and medical staff that have dedicated their careers to child-focused health care. If you would like to learn more about us please feel free to call to schedule a complimentary prenatal or “meet and greet” appointment.





  • "I recently switched to this practice and have been so happy with the quality of care and the accessibility of the nurses and doctors."
    - Christina Burak
  • "Love them! The entire group has always done great by my twins since the day they came home from the hospital. They just turned five... I cannot say enough about the great doctors, nurses and PA’s at Pediatrics on Hudson."
    - Danny Sabol
  • "Oh, how we love Pediatrics on Hudson. Smart, caring, attentive doctors, nurses, and staff. We called this afternoon (after hours) with an urgent question; the doctor on call was in touch within two minutes. Just a really special place.
    - Jen Hubley Luckwaldt

Our Location

Hours of Operation


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-12:00 pm