Mom holding her baby
Smiling teen lounging on grass
Smiling child playing with plastic animals

Parenting help from Dr. Petit→ The Parenting Playbook 

A Great, Caring Medical Practice


At Williams and Petit Pediatrics in Catonsville, MD, we pride ourselves on being a caring and dedicated medical practice. Dr. Samuel Williams, Dr. Lisa W. Petit, and our friendly, supportive staff are committed to providing the highest quality medical care to our patients, from birth up to 26 years of age. 


What sets us apart as pediatricians is our unwavering commitment to listening, communicating, and working together with our patients. We believe in honest conversations and collaborative planning to address health concerns effectively.


At Williams and Petit Pediatrics, we are more than just a medical practice – we are a trusted partner in your health journey.


At Williams and Petit Pediatrics in Catonsville, MD, we pride ourselves on being a caring and dedicated medical practice. Dr. Samuel Williams, Dr. Lisa W. Petit, and our friendly, supportive staff are committed to providing the highest quality medical care to our patients, from birth up to 26 years of age. 

What sets us apart a pediatricians is our unwavering commitment to listening, communicating, and working together with our patients. We believe in honest conversations and collaborative planning to address health concerns effectively.

At Williams and Petit Pediatrics, we are more than just a medical practice – we are a trusted partner in your health journey.

Latest • Practice • News

A boy
By Lisa Petit • September 4, 2025
Vaccines protect children from serious diseases. Trust Williams and Petit Pediatrics for expert advice on immunizations & keeping your family healthy.
A boy
By Lisa Petit • September 4, 2025
Vaccines protect children from serious diseases. Trust Williams and Petit Pediatrics for expert advice on immunizations & keeping your family healthy.
Promotional flyer for The Screen S.M.A.R.T. Summer Bundle with a child using a tablet and a 5% off badge
By Lisa Petit • July 12, 2025
Tame summer screen time with the Screen S.M.A.R.T. Bundle! Get resources to set healthy limits from Williams and Petit Pediatrics.
Flyer for “Screen S.M.A.R.T. Parenting” with children using devices and an enroll-now QR code on purple background
By Lisa Petit • April 26, 2025
Enroll in Williams and Petit Pediatrics' new on-demand course, Screen S.M.A.R.T., to manage your child's screen time. Sign up now!