Pediatrician - Ponca City
415 Fairview Ave, Suite 100
Ponca City, OK 74601
(580) 765-5569

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Meet our team at Northern Oklahoma Regional Pediatric Clinic! Please take a few moments to learn about our skilled practitioners.

At Northern Oklahoma Regional Pediatric Clinic, we consider it both a great joy and responsibility to care for children. Most of us are parents ourselves, so we strive to be understanding and available to the families we are privileged to serve. We are honored that you have chosen us as your child's primary medical provider and are confident that you will be pleased with the quality of care and service that we can provide you and your family.

A vital part of our service to children begins with our outstanding staff who works hard to manage and maintain a professional, caring and supportive environment for our patients in a timely manner. Our doctors and nurse practitioners are lifelong learners. Not only have they received advanced medical training in pediatrics, they continually pursue ongoing education to stay abreast of the latest in child health care.

Your child's health is as important to us as it is to you. We look forward to providing you with excellent pediatric care in the Kay Co. area.

Ahmad S. Agha, MD, FAAP

Ahmad S. Agha, MD, FAAP, has been a practicing physician since 1974.  He is Board Certified in Pediatrics; in addition to pediatrics he also provides Allergy and Asthma Evaluations for Children and Adults. He is a member of the American Academy of Pediatrics and Oklahoma State Medical Association.  He has served as Chief of Staff at Via Christi Medical Center in Ponca City.  He also served on the Board of Directors at the Ponca City Hospital.  He currently serves on several Hospital Committees.  He has also served on many Ponca City Community Boards.

Dr. Agha earned his Doctor of Medicine Degree at Ain Shams University, Cairo, U.A.R. in 1971, then completed his Internship and Residency in general pediatrics and completed a Fellowship in social and preventative pediatrics at the American University of Beirut, Lebanon.  From 1974-1976 he worked as a Pediatrician in Saudi Arabia.  He then moved to the United States and completed an additional Residency in Pediatric at the University of Iowa Hospitals and Clinics.  In June 1978, he moved to Ponca City, Oklahoma and joined with Dr. Jane Thomason and together they established Northern Oklahoma Regional Pediatric Clinic.

Dr. Agha and his wife, Samira, have 3 grown children and 6 grandchildren.  During his spare time, he enjoys swimming, boating, karate, fishing, hunting, playing table tennis, watching football, tennis and nature programs.

Michael Walker, MD, FAAP 
Dr. Michael Walker is a board certified pediatrician that grew up in Norman, Oklahoma. He is a member of the American Academy of Pediatrics, Oklahoma State Medical Association.  Dr. Walker earned a bachelors degree in Microbiology from the University of Oklahoma.  He continued his education at the University of Oklahoma Medical School. Upon completing his medical degree Dr. Walker served as Chief Medical Resident at OU Medical Center following his residency training and had several publications during his residency as well. 

In 1994 Dr. Walker moved to Ponca City and joined Northern Oklahoma Regional Pediatric Clinic.  Dr. Walker has served on several committees as well as Chief of Staff at Ponca City Medical Center. Dr. Walker believes in getting involved in his community. He has been an active member of various community boards and organizations through out the years. He currently is serving as one of the Ponca City High School Football physicians.   

Dr. Walker and his wife have 4 children and 1 grandchild. In his spare time he enjoys boating, outdoor activities, woodworking, watching football and spending time with his family.

Peter Sinton, MD, FAAP  
Dr. Peter Sinton is a board certified general pediatrician, who grew up here in Ponca City.  He is a member of the American Academy of Pediatrics, Oklahoma State Medical Association.  Dr. Sinton attended college at the University of Dallas in Irving, TX.  Then went on to further his education at the University of Oklahoma medical school after which he completed his residency at LeBonheur Children's Hospital Memphis, Tennessee.  During his residency he also worked for St. Jude's Children's Research Hospital.

Dr. Sinton moved back to Ponca City in 2007 and joined Northern Oklahoma Regional Pediatric Clinic. He has served on several committees at the Ponca City Hospital. Dr. Sinton serves as the chair of the Ponca City Medical Center Ethics committee for 2013-2014.  He and his wife are active members in their church home as well as avid supporters of various community organizations such as the local American Red Cross and the Ponca City Human Society.

Dr. Sinton and his wife Jamie have three boys, Jude and Maxwell and Kingston. They are all big Sooner fans.  Dr. Sinton enjoys singing in his church choir, gardening, cooking and pending time with his family.

Brenda Peters, APRN-CNP

EDUCATION:  Brenda earned her Master's in Nursing from Wichita State University in 2002, her Bachelors of Science in Nursing from St. Mary of the Plains College in Kansas in 1990, her Associates of Science in Nursing from Northern Oklahoma College in 1987 and earned her LPN from Pioneer Technology Center in 1984.

EXPERIENCE:  Brenda joined our Clinic in 2002 shortly after obtaining her certification as a Nurse Practitioner, certified in pediatrics through NAPNAP accreditation board.  Prior to this, Brenda came to our clinic with 3 years of LPN experience at the Ponca City Medical Center, Medical/Surgical Ward, then another 3 years of experience at the Ponca City Medical Center Birth and Family Ward and Emergency Room Ward.  Brenda was promoted to Director of the Emergency Department of Ponca City Medical Center in which she gained another 25 years of experience and earned her Certification of Emergency Room Nurse through Emergency Nurses Association. 

AWARDS:  During her employment at Ponca City's local hospital, Brenda was awarded with Via Christi Mission Award in 1998, St. Joseph Regional Medical Center Mission and Ministry Award in 1999 and was awarded Mission Accomplished Award by Via Christi Medical Center in 2002.

PERSONAL:  Brenda is compassionate about the care of her patients.  She loves to teach and help her patients grow up healthy.  Brenda was raised in this area and has many extended family and friends.  Family is important as evidenced by 30 years of marriage, 4 daughters and 1 grandchild.  Brenda enjoys farming, sewing, cooking, crafting and most of all spending time with her family. 

Lacey Brewer, APRN-CNP

Lacey joined our our pediatric clinic in September 2015 shortly after earning her Masters in Nursing with HONOR'S from the University of Oklahoma in May 2015.  Prior to this Lacey earned her Bachelors in Nursing from the University of Oklahoma in 2004, her Associates from Northern Oklahoma College in 2002 and earned her LPN with HONOR's from the Pioneer Vo-Tech in 1999.  Lacey also specializes in pediatrics and is certified from NapNap certification board.

Lacey also has had many years of experience such as 4 years at the Urgent Care Clinic, 6 years at Blackwell Hospital and another 6 years at Ponca City Medical Center.  Both now call Alliance Health in the labor and delivery ward.

Lacey was boran and raised in Ponca City, OK where she met her husband (Jay) of 18 years and has 3 children that she loves spending time with.  Lacey stays very active with her children's activities as well as with her and her husband's extended family and friends.  She is a big fan of OU football and the OKC Thunder basketball team and loves to read.

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Call (580) 765-5569

415 Fairview Ave
Suite 100
Ponca City, OK 74601