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Pediatrician and child
Because childhood should be simple ...

713 Hebron Pkwy.Cook Children's Pediatrics


Hebron Parkway

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At Cook Children's, we know that nothing is more important than the health of your child. Thank you for having trust in us. Our goal is to provide the best care possible in a child-friendly environment. We want to help kids stay healthy, and promote healing when they are ill.

Cook Children's Pediatrics – Lewisville

713 Hebron Parkway, Ste. 232
Lewisville, TX 75057
972-316-7400 phone
972-316-0907 fax
817-347-6868 schedule appointment
Driving Directions

M, W, Th and F: 8a.m.-5p.m.*
T: 9a.m.-6p.m.**
Closed Saturday and Sunday.

* Closed weekdays for lunch noon-1p.m.
** Closed Tuesdays 1p.m.-2p.m.

Meet our doctors

Lizy Varughese, M.D.

Sandra Peak, M.D.

Dr. Peak attended Baylor University and received a B.A. in English and Psychology. She attended medical school at University of Texas Health Science Center in San Antonio. Her Pediatric Residency was at Arkansas Childrens Hospital in Little Rock where she participated in Angel One emergency helicopter transport service and where she received the Jocelyn Elders Award for excellence in community service. She returned to her home town of Dallas in 1998 and established a Pediatric Practice in Carrollton, Texas. She joined Cook Childrens Physician Network in Lewisville in 2004. Dr. Peak enjoys gardening, yoga, and boating and in her spare time can be found at the lake with her husband Jay, stepson Sage and the world's most amazing Lab, Sugar Mae. View physician biography.

Lizy Varughese, M.D.

Lizy Varughese, M.D.

Dr. Varughese received her undergraduate degree in biomedical science from Texas A&M University in College Station, Texas, and earned her medical degree from University of Texas Medical School in Houston, Texas. She completed her residency at Stony Brook University Hospital in Stony Brook, N.Y. She is board certified and available five days a week to see patients. View physician biography.

Office hours and appointments

Request appointment

Make an appointment at Lewisville

New and existing Cook Children's Lewisville pediatrician office patients can make an appointment by calling: 817-347-6868

New patients, for your convenience, please have your insurance information ready when you call.

Fees, payments and insurance

Exchange messages, review and pay bills, request appointments and insurance information through (patient portal)

Patient forms

We know that filling out forms can be time consuming, however, they are a required part of your child's care. For your convenience, we've provided patient information and consent forms here. Just print them out, fill in the information, sign them and bring the completed forms with you when you come in for your appointment.

Cook Children's specialty care services

At Cook Children's, we provide more than 60 pediatric medical and specialty clinic offices throughout Texas.

Continued care


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