Meet Dr. Sandra C. Peak
While other little girls hosted tea parties, a young Sandra Peak, M.D, opened a "clinic" and forced her brother to either be a nurse or the parent bringing in dolls to be bandaged. So it's certainly no surprise that she grew up become a pediatrician and care for kids.
"I chose pediatrics because, at least for me, it was the one place in medicine where I felt I could truly change a person's life—and I could do that simply by educating their parents," Dr. Peak said. "Plus, kids are truly amazing! They have a natural empathy that I identify with. The best parts of my job are the hugs, high fives, giggles and eye rolls ... plus an unlimited supply of lollipops.
Wait, eye rolls? Yes. Dr. Peak has the kind of humor that inspires good-natured eye rolls from her family. In spite of their eye rolls, she adores them. She calls her husband, Jay, "an amazing man whose selfless dedication to our family inspires me every day." She says her stepson, Sage, is a constant source of hilarity and keeps her and her husband on their toes.
"It's easy to identify with kids ... especially when, in your heart, you're still a kid too," Dr. Peak said. "The secret is putting yourself in their place. Remembering how big and scary and wonderful and mysterious the world seemed when you were little."
Earning a B.A. degree in English and psychology from Baylor University helped Dr. Peak communicate with the children she treats today. After Baylor, she followed her passion and attended medical school at University of Texas Health Science Center in San Antonio. Her pediatric residency was at Arkansas Children's Hospital in Little Rock, where she participated in Angel One emergency helicopter transport service. While there, she also received the Jocelyn Elders Award for excellence in community service. Dr. Peak returned to her home town of Dallas in 1998 and established a pediatric practice in neighboring Carrollton, Texas. She joined Cook Children's Physician Network in Lewisville in 2004.
But she didn't stop there! She's also an associate professor at TCU's medical school, where she is helping to shape the future of medicine through her teachings. In 2022, she become a Director of Primary Care for Cook Children's Physician Network. When asked about all her commitments, she will tell you that she is always learning new things that ultimately help her to continually stay on top of the latest in pediatric medicine and grow as pediatrician. In her spare time, Dr. Peak enjoys gardening, Pilates, and boating. She can often be found at the lake with Jay, Sage and the world's most amazing Labs, Indiana "Indy" Jones and Luke.
My children (1 and 11) have been patients of Dr. Peak since they were born. As a new mom, she calmed my fears. Now, with older kids, I love how she takes the time to talk to and listen to them. Her questions and answers are not just directed at me, but at my kids themselves, which I think is great. She helps them understand their treatment and truly listens to their concerns (as well as mine). She is a fantastic doctor, and we are grateful to have her caring for our kids. – Parent family
Services
- Acute illnesses
- Chronic condition management
- Developmental problems
- Disease prevention
- Flu shots
- Hearing screens
- Injury treatment
- Obesity and weight management
- Vision screens
- Patient and parent education
- School and sports physicals
- Vaccines and immunizations
- Well checks
Reviews
Average rating:
| Questions were addressed |
5
|
| Provider explained things clearly |
5
|
| Likelihood of recommending this provider |
4.9
|
| Trust/confidence in physicians |
5
|
What our families say
-
November 29, 2025
We did not have to wait long before being seen. My child was hesitant prior to seeing the provider due to [...] and discomfort in prior experience. But the staff at the office made the procedure easy and tolerable.
-
November 25, 2025
Very good
-
November 19, 2025
My daughter always looks forward to appointments with Dr. Peak. She raves about her all the time. She is an amazing doctor.
-
October 28, 2025
All great visits, exceed expectations
-
October 28, 2025
Dr. Peak is amazing and so attentive to our girls! Her staff is so polite; we love coming here!
-
October 19, 2025
The entire team did a wonderful job as usual.
-
September 25, 2025
All good experiences, we've gone through a lot the first two weeks of my child's life - Dr Peak really helped me feel grounded and guided our care.
-
September 25, 2025
We love [...] at the front desk! And Dr. Peak is just amazing! [...] always helps check us in and accommodate my child's needs and really listens to me. The whole team is awesome.
-
September 16, 2025
Dr. Peak and her team always does an amazing job with our children. The staff is always extremely friendly and never make me feel like I have a dumb question. As a newer parent this always put me at ease.
-
September 15, 2025
Dr peak always is amazing
-
September 06, 2025
Dr. Peak and staff are great!
-
September 06, 2025
Dr. Peak is supportive and informative about any issues our children encounters. Always provide best practice medicine.
-
August 27, 2025
Dr. Peak is always good to listen to every question and concern then provide guidance. I appreciate her expertise and kindness.
-
August 21, 2025
Dr. Peak is an outstanding Pediatrician and I would recommend her to everyone!
-
August 21, 2025
The wait times inside the exam room can get a bit lengthy sometimes. Also, getting connected to the portal has been very difficult. These things could be improved. However, the care and attention Dr. Peak and her staff provide is absolutely phenomenal!
-
August 06, 2025
Dr Sandra Peak. She is awesome!
-
August 06, 2025
My kid loves Dr Peak. She is very professional, kind and awesome.
-
July 29, 2025
All of the staff is super Friendly make every visir stress free
-
July 29, 2025
I think I have met 90% of the staff and everybody is amazing!!
-
July 26, 2025
Everyone is great in the office!
-
July 26, 2025
My child is learning and can be very expressive. The NP and Dr. Peak both were very helpful in educating me on coping and teaching my son some techniques.
-
July 21, 2025
This was the fastest in and out that I can remember.
-
July 21, 2025
Dr Peak has been [...] Primary Care since she started in our office. I love her and have always felt she genuinely cares.
-
July 16, 2025
Dr. Peak, [...] and [...] are always very helpful and informative throughout every step of the process! Great group in the Lewisville location!
-
July 02, 2025
Dr Peak is so knowledgeable takes time to ensure all my questions are answered and I never feel rushed when I have her in the exam room. She genuinely cares and ensures I have no concerns.
-
June 29, 2025
We Love Dr peaks and all the staff, as a mom of 3 all seen at the office I feel confident when we go visit
-
June 29, 2025
Dr Peak listened to all our questions and provided expert advice and next steps.
-
June 29, 2025
[...] was fantastic and Dr Peak was especially knowledgeable and thorough in her exam!
-
June 29, 2025
Dr. Peak has been my daughters physician for many years and always so caring, wonderful listener and really connects with her patients
-
June 15, 2025
Everyone was great!
-
June 15, 2025
Dr Peak was great! Nice to have a doctor that is realistic (understanding kids eating patterns, etc) & practical
-
June 15, 2025
Overall a great experience!
-
June 15, 2025
Good first experience! Dr Peak was great & staff!
-
June 13, 2025
Dr Peak is more than amazing! We have seen her for 6 years despite moving an hour away from the facility.
-
June 06, 2025
Dr. Peak was wonderful! She was so kind to us. She explained things very well to my daughter who is 15. We are so happy she will be my daughter's new pediatrician since ours retired. Her nurse was very helpful too.
-
May 30, 2025
She is always treated kindly and allowed to voice her concerns
-
May 30, 2025
Dr Peak and Staff are always amazing! She has the best nurses ever.
-
May 29, 2025
Dr. Peak is the best
-
May 29, 2025
Dr. Peak takes her time with her patients She is so caring We love her
-
April 24, 2025
Dr Peak is top tier, she's communicative, she explains everything in depth, gives options, keep trying to solve the problem. Genuinely fantastic pediatrician! The whole office staff is wonderful and helpful
-
April 23, 2025
Dr. Peak is amazing!
-
April 23, 2025
I travel 2 hours to have my son seen by Dr. Peak. She answers my questions and calms "mommy anxiety".
-
April 21, 2025
Never have had a bad experience with this office in 15 years.
-
April 21, 2025
Dr. Peak is always attentive to my concerns and my children. Her bedside manner is impeccable. We love her as our pediatrician for 15 years.
-
April 19, 2025
Dr. Peak Is amazing and saw all her staff as well!!!
-
April 19, 2025
Never ever ever in my almost 10 years as the parent of a patient have we had a bad experience. Cook Childrens, ESPECIALLY Dr. Peak, Has always provided an environment of health, safety, education, nurturing, peace. Within the first two minutes of meeting her almost 10 years ago she gave my wife and I peace and we've trusted her ever since and we've been blessed ever since. If I could as a goofy adult and kid at heart, I'd love to be her patient!! Cook Childrens is amazing and we are grateful for all the care we've had and mainly the peace you've given us as parents. If possible, please share this and post this publicly we love Cook Childrens!
-
April 10, 2025
Dr. Peak and her staff are always great! We are very grateful to have such a great doctor for our children.
-
April 05, 2025
Dr.Peak is THE BEST DR. We have ever had for our children. We can't recommend her enough or give her enough credit for the care she provides.
-
April 04, 2025
Dr. Sandra Peak is amazing! She cares so much for my baby!
-
April 02, 2025
Great visit
-
April 02, 2025
Dr. Peak has great bedside manners! She has compassion for her patients.
-
March 16, 2025
All staff was friendly during the visit.
-
March 12, 2025
Always a warm welcoming and lots of laughter when we visit.
-
March 12, 2025
The entire staff. I love them all. Always so nice and pleasant. I drive from Forney, TX when necessary because I know they will take great care of my child.
-
March 08, 2025
Dr. Peak us the absolute best pediatrician my child could ever have! She is a treasure! Truly one if a kind!
-
March 08, 2025
Dr Sandra Peak is great. She is always so personable and kind with my daughter.
-
February 07, 2025
I love that they all listen to hear
-
February 07, 2025
Dr Peak! and her staff are awesome! Thank you all for being in health care.
-
February 04, 2025
Amazing staff
-
January 28, 2025
Loved doctor Peak!
-
January 27, 2025
DR.Peak is the BEST ever!
-
January 26, 2025
Dr peak was also my husbands doctor when he was a kid. We drive 45 minutes just to make sure they are seen by her.
-
January 19, 2025
The front staff and Dr Peak fit [...] in last minute and were very helpful to alleviate concerns. We are very grateful for the team.
-
January 18, 2025
Dr Peak and her staff are amazing
-
January 18, 2025
Dr Peak and her staff are amazing!!
-
January 18, 2025
If I could rate them on a scale of 1-10, they are easily a 75!! We LOVE them!!
-
January 15, 2025
My 8yo told me recently that he knows Dr. Peak has hundreds of patients, he always feels like she is just our family's doctor. She makes my kiddos feel like they are the most important people in the world. She listens and has such a great rapport with them and is as parents.
-
January 08, 2025
Every visit has been a great visit. Office is clean. Staff is professional and friendly. Always very helpful.
-
January 08, 2025
Dr Sandra Peak has been an outstanding care provider for my children for over 19 years. She is professional, caring, and I appreciate her taking a personal interest in them.
-
December 29, 2024
Dr.Sandra Peak is always very helpful and ensures that I get the highest quality of care and attention.
-
December 18, 2024
Excellent experience
-
December 17, 2024
Dr. Peak is the best pediatrician that I could have hoped for to care for my children.
-
December 05, 2024
I like this office a lot and am glad my child goes to this facility.
Education
- Medical school:
- University of Texas Health Science Center at San Antonio
- Board certifications:
- American Board of Pediatrics
Affiliations
- Cook Children's Physician Network
Recognitions
- Mom-Approved Doctor (2025)
- D Magazine's Best Pediatric Doctors (2025)
- D Magazine's 2025 Best Doctor

Find us on social