Meet Dr. Jeffrey L. Day
As a child, Jeffrey Day M.D., wanted to be a pilot, but a summer job at a camp for kids with disabilities, changed all that. He knew then that he wanted to become a pediatrician.
From newborns to teens, Dr. Day finds every day seeing the kids he cares for and their parents fulfilling. He knows that everyone is on a unique journey through childhood and parenthood and he's honored to be able to accompany them.
Dr. Day received his medical degree from The University of Texas Medical School - Houston. He completed his pediatric internship and residency at the University of Arkansas for Medical Sciences. He is an Associate Professor of Pediatrics at the UNT/TCU Medical School. Dr. Day is board certified in pediatrics and is a member of the American Academy of Pediatrics.
In his free time, Dr. Day enjoys spending time with his wife and children, watching college football, reading and spending time at the lake.
Dr. Day has been my sons pediatrician since birth. We always appreciate his thoroughness and down to Earth care. He makes teenagers feel welcome with speaking up about anything they may feel uncomfortable about. He is a fabulous doctor and asset to Cook Children's. – Patient family
Services
- Acute illnesses
- ADHD management
- 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 |
5
|
| Trust/confidence in physicians |
5
|
What our families say
-
November 22, 2025
Everyone is always so nice and helpful. We always have a good experience in person, on the phone, and through the portal messaging.
-
November 15, 2025
Dr. Day is an incredible asset to patient care- especially young patients. Very relatable which is rare with most physicians.
-
November 08, 2025
The entire office is wonderful. Dr. Day and Nurse [...] are incredible.
-
November 08, 2025
I've recommended this office numerous times, we've been seeing them for 14 years and I'm grateful for the staff being kind, caring, and supportive for families.
-
October 29, 2025
Dr. Day is amazing! He made my 4 year old giggle and giggle even though he was nervous.
-
October 26, 2025
Dr Day and all the office staff and nurses. Always an easy and informative.
-
October 24, 2025
I would never take my child anywhere else. We love the office
-
October 24, 2025
Dr. Day and [...] were both attentive, informative, professional and kind as always
-
October 23, 2025
Great visit from all the staff
-
October 23, 2025
Dr. Jeffrey Day is amazing. And [...] is so helpful and caring.
-
October 22, 2025
Dr. Day and all his staff have always been amazing and we are so blessed to have such a kind, caring, patient and informative doctor in my kiddos lives! Since my kiddos were babies, Dr. Day has been our doctor and every time I am beyond thankful for him and his practice!
-
October 19, 2025
Always have POSITIVE experiences
-
October 19, 2025
Dr. Day and nurses are ALWAYS AWESOME
-
October 07, 2025
They are both AMAZING!
-
October 04, 2025
Everyone was great- we love Dr Day and his nurse
-
October 01, 2025
Great experience as always!!!!!
-
October 01, 2025
Dr. Day is the absolute best!!!! The entire staff is amazing!!!!!!
-
September 25, 2025
I have had no negative experiences at Cook Children's South Denton Office. They are always on top of things and great with the kids.
-
September 25, 2025
Dr Day is an amazing doctor. He is incredible with our oldest child and has been fantastic with both of our younger kids as well. He is patient, knowledgeable, makes the kids laugh and feel comfortable, and is wonderful with all 3 of our kids.
-
September 23, 2025
Amazing
-
September 23, 2025
Awesome doctor great beside manor He loves the children
-
September 23, 2025
We love Dr. Day and staff!
-
September 23, 2025
I love this practice and the amount of care and attention we receive whether my daughter needs a well check or is seen for a sick visit. Thank you all for your hard work and kindness.
-
September 23, 2025
We love Dr. Day and staff!
-
September 16, 2025
Nurse [...] and Dr. Day are always so nice and genuinely concerned.
-
September 16, 2025
The level of care is always 100 with Dr Day and his team.
-
September 16, 2025
Physicians and Office staff in this clinic are amazing! Have been seeing them past 23years and never had issue
-
September 16, 2025
All the nurses we have had during our visits have been wonderful! We love Dr. Day!
-
August 13, 2025
Love all the staff at this office! Always a pleasant visit that my son and I look forward to. Dr. Day has a gift!
-
August 07, 2025
Always caring and thorough and pleasant. He truly cares.
-
August 06, 2025
Everything was top tier.
-
August 06, 2025
Dr. Day is an excellent physician we have been going to see him over 6 years ( maybe more ) and we have always get excellent treatment.
-
July 31, 2025
It was a good day. Thank you everyone.
-
July 31, 2025
Love Dr. Day and [...]!
-
July 23, 2025
As always, Dr. Day was amazing in providing care for our kids. This is why we have been coming to see him for 15 years.
-
July 19, 2025
Dr. Day is the best! I recommend him to all my friends and family!
-
July 17, 2025
We love this office!
-
July 17, 2025
Dr. Day and [...] provide exceptional care
-
July 16, 2025
We love this office! Each staff member is so good with our baby and they are so kind to us.
-
July 16, 2025
[...] and Dr. Day go above and beyond for my family. They listen to all of our concerns and professionally educate us on best practices and the why behind treatment. Thank you for taking your time with us to help us feel more comfortable!
-
July 02, 2025
Dr. Day, personable, awesome
-
July 02, 2025
Dr. Day is the best, so glad our kids have him!
-
June 14, 2025
[...] and Dr. Day are always amazing!
-
June 11, 2025
[...] and Dr Day are the best!
-
June 11, 2025
I feel so lucky to have Dr Day and Heather. I could not ask for better care for my 2 boys. Thank you so much!
-
June 10, 2025
The best pediatric nurse and pediatrician around!
-
June 05, 2025
Good all way around
-
June 05, 2025
Dr Day is always great with the kids. And the nurses both were great !
-
May 29, 2025
I appreciate the attention from the nurse staff.
-
May 29, 2025
Dr Day is my favorite doctor I've ever had the pleasure to take my children to.
-
May 28, 2025
[...] and Dr. Day are always wonderful!
-
May 23, 2025
Everyone at this location from office to billing to nurses and Dr Day is absolutely amazing. My child looks forward to going to the Dr and refuses to switch to a different provider. We love Cook Children's!
-
May 16, 2025
Dr. Day is always so phenomenal, he easies my concerns and worries about my children and is so knowledgeable.
-
May 16, 2025
Everyone! From scheduling the visit to checkout! The entire office is outstanding. We moved from Denton several years ago but will travel to keep this office and everyone in my kids corner! Dr Day is hands down best pediatrician.
-
May 14, 2025
Dr.Day and their assistant practitioner top notch. Very well versed and spot on.
-
May 09, 2025
[...] and Dr. Day are a great team!
-
May 04, 2025
Dr. Day is always very caring and thorough. He's amazing with children.
-
May 03, 2025
Dr. Day is a great pediatrician and I trust him with the care of my daughter.
-
April 29, 2025
All of the staff where wonderful like always!
-
April 26, 2025
I recommend Dr Day's office to everyone. Always a great experience.
-
April 26, 2025
Everyone is amazing at Dr Day's office. From front office to back office, we love all the staff.
-
April 23, 2025
Dr. Jeffrey Day is amazing!
-
April 17, 2025
Dr. Day is the BEST!!
-
April 17, 2025
Dr. Day has always been amazing!
-
April 12, 2025
[...] and Dr Day are all incredible and take time to listen and give informed consent.
-
April 12, 2025
This is the least amount of time I've spent in this office and it was amazing! Thank you.
-
April 10, 2025
Dr Day! He's amazing!
-
April 09, 2025
Staff is really friendly and makes it very easy for child to relax even on. Wellness Check.
-
April 09, 2025
My son is not often sick(knock on wood) but he has loved from day one going/growing up with Dr Day. For my son to dab up his doctor and say "My Man" when he sees his doctor just really emphasizes Dr Day's patient doctor interaction goes beyond medical.
-
April 08, 2025
Always good
-
April 08, 2025
[...] is always awesome
-
April 05, 2025
Always thankful for [...] and Dr. Day!!
-
April 04, 2025
It was great, thank you.
-
April 04, 2025
We have had Dr. Day since they (both of the boys) were born. He has been great. I trust him to give us the best care.
-
March 27, 2025
Dr. Day is always great. The woman with short red hair at the front desk is always wonderful, I've never caught her name.
-
March 18, 2025
We just love Dr. Day
-
March 18, 2025
I have always been very happy with my experiences with this office
-
March 08, 2025
Dr Day is the best. Nurses, reception, everyone is wonderful.
-
March 08, 2025
I love how everyone at Cook's addresses the child before the parent. It really makes a positive difference.
-
February 26, 2025
Great as always!
-
February 21, 2025
Dr Day and nurse [...] are the best. They care, have a way of comforting with their casual demeanors, and are genuinely good people.
-
February 20, 2025
I love every staff member but huge shout out to Dr.Day & nurse [...] for always going above and beyond for my children and [...] at front desk is amazing!
-
February 20, 2025
Nurse [...] and Dr. Day were prompt, reassuring, and caring.
-
February 18, 2025
Dr. Day and his nurses are always phenomenal; they are kind and caring when examining my baby and I always feel heard when discussing any concerns. The office staff is also so kind and informative!
-
February 18, 2025
Was very easy to talk to and helped eliminate anxieties instead of adding to worries
-
February 14, 2025
The front office, the nurse and Dr. Day are always so nice and welcoming and genuinely care about our family!
-
February 09, 2025
Dr day is always amazing
-
February 07, 2025
All the staff and providers are great!
-
February 04, 2025
The entire staff is super
-
February 04, 2025
Dr Day and staff are awesome!
-
February 04, 2025
Clean! Friendly! Happy staff!!
-
February 04, 2025
Dr. Jeffrey Day and his nurse [...] are absolutely amazing!! We are so blessed to have them on our care team. Dr. Day is extremely knowledgeable, and caring! There's not another pediatrician like him.
-
January 29, 2025
Always love [...] and Dr. Day!
-
January 18, 2025
Everyone at this location is always fantastic
-
January 16, 2025
The staff is so friendly. We love going to that office! Always 10/10
-
January 16, 2025
Dr. Day is amazing! He always answers any question or concern no matter how small, and makes it easy to understand.
-
January 15, 2025
Dr. Day is an excellent doctor and has a great sense of humor that puts everyone at ease.
-
January 09, 2025
Dr. Day always takes the time to play/make it fun checking vitals with my child.
-
January 09, 2025
Dr. Day is always so good with easing my child's anxiety about being at the doctor.
-
December 17, 2024
Dr. Day and his nurse! They are wonderful and are very caring toward me and my child.
-
December 10, 2024
Never had a bad experience.
-
December 10, 2024
I love this office in general. The front desk staff is phenomenal and always friendly. You can tell they enjoy their jobs and are good at them. The nurses are always prompt, thorough, and happy. Dr. Day is always friendly, actively engages with my kids, makes them laugh and gives me multiple options for treatment, his recommendations and the pros and cons to all of them. Love this practice. I recommend it all the time.
-
December 08, 2024
Nurse [...] and Dr Day are always so kind, knowledgeable and make our family feel seen and cared for!
Education
- Medical school:
- University of Texas Medical School-Houston
- Residency:
- University of Arkansas for Medical Sciences
- Board certifications:
- American Board of Pediatrics
Affiliations
- Fellow of the American Academy of Pediatrics, American Board of Pediatrics,Cook Children's Physician Network
Find us on social