Allergy & Asthma Affiliates

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Allergy & Asthma Affiliates

Allergy & Asthma Affiliates is dedicated to being the leading resource in pediatric & adult allergy, asthma, & immunology for over 40 years!

We offer 7 convenient locations in East Tennessee! Make an appointment with one of our board certified allergist MEET OUR PROVIDERS:

DR. DON ELLENBURG
Dr. Ellenburg is a Knoxville native who grew up in the Fountain City community. He is the founding physician of Allergy & Asthma Affiliates and received his undergraduate and medical degrees from the University of Tennessee. He completed a pediatr

ic residency at the University of Louisville and then completed his Allergy and Immunology fellowship there as well. While there he was broadly trained in pediatric chest and respiratory disease. Following his pediatric and allergy specialty training he returned back to his hometown and started Allergy & Asthma Affiliates in 1981. Dr. Ellenburg founded the Cystic Fibrosis Clinic of East Tennessee and served as its medical director for 19 years. He has had a long working relationship with East Tennessee Children’s Hospital and still very much enjoys working with children, adults, and families. He has remained very active in the Knoxville medical community and is active in Partners in Pediatrics. He served as the President of the Knoxville Academy of Medicine in 2005. He has also been associated with the American Lung Association of Tennessee and founded Camp Wezebegon, which helped aide in the transition of asthma care from parents to youngster. He is board certified in pediatrics and allergy and immunology. Dr. Ellenburg has been happily married since 1974 and has 2 children both of whom have chosen to pursue medical careers. In his free time he enjoys walking, gardening, reading, watching UT athletics, and tending to his two golden retrievers. DR. TIMOTHY FRAZIER
Dr. Frazier is also a native of Knoxville and grew up in the Fulton community. He received his undergraduate degree from the University of Tennessee in Agriculture and initially pursued a career in pharmacy. After completing his Doctor of Pharmacy at UT-Memphis he decided to become a physician. He graduated from ETSU’s Quillen College of Medicine and then did a combined residency in pediatrics and internal medicine at the University of Louisville. While there he served as Chief Resident. He then completed a two-year allergy and immunology fellowship at the Medical College of Georgia in Augusta. Dr. Frazier joined Allergy & Asthma Affiliates in 1994 and specializes in pediatric, adolescent, and adult allergy and asthma care. He is married and has 2 children. When not at work he enjoys spending time with his family, reading, and cattle farming. DR. ANDREW SINGER
Dr. Singer joined our practice in 2007 after serving as a clinical instructor in the Division of Allergy & Immunology at the University of Michigan. He received his Bachelor of Science in Biology and his medical degree from Indiana University. He then went on to complete his pediatric residency at the University of Cincinnati and then completed his allergy and immunology fellowship at the University of Michigan. After moving to Knoxville, Dr. Singer co-founded Volunteers Educating for Food Allergies (VEFA), which is a Knoxville based food allergy advocacy group. He is married and has one daughter. In his free time, Dr. Singer enjoys spending time with his family, collecting cars, and watching IndyCar racing. DR. TRENT ELLENBURG

Dr. Trent Ellenburg joined Allergy & Asthma Affiliates in 2016, returning to his North Knoxville roots. He earned his undergraduate degree from the University of Tennessee. He graduated from The Via College of Osteopathic Medicine-Virginia Campus and completed a combined residency in pediatrics and internal medicine from the University of Mississippi. He completed his allergy and immunology fellowship at the University of Tennessee Health Science Center and serves on the board of the Southeastern Allergy, Asthma, and Immunology Society. Dr. Ellenburg is married with two children and enjoys family time, traveling, playing golf, coaching youth sports, snow skiing, and supporting the Vols. We also serve our community with the help of Certified Nurse Practitioners:
Megan Brumbelow, FNP
Christin Carter, FNP
Kristine Meade, FNP
Olivia Art, FNP

07/03/2025

Happy Independence Day to our wonderful patients and team! Hope everyone has a wonderful Fourth of July Holiday weekend! Our offices will be closed on BOTH Friday and Saturday. Enjoy the weekend with your family and Friends as we celebrate and thank God for our country that is like no other!

05/04/2025

It’s National Nurses week! Find your favorite nurse, give them a hug and tell them thank you! Thank you to our incredible nursing staff that makes all our days better! We love you!

04/18/2025

Allergy & Asthma Affiliates will be CLOSED on Good Friday as well as Saturday. All Saturday shot clinics will be closed. Hope this gives you enough time to make plans accordingly for your Easter Holiday! He is Risen !

03/27/2025

02/20/2025

01/13/2025

Due to a recent staffing challenge, starting Monday, January 27, 2025, the Oak Ridge office location will be CLOSED on Mondays until further notice.

We sincerely apologize for any inconvenience that this may cause and hope that this will only be temporary.

Thank you for your understanding,
Allergy & Asthma Affiliates

01/11/2025

Allergy & Asthma Affiliates’ Saturday morning shot office locations will be CLOSED today due to snow. Stay safe and Have Fun.

01/10/2025

Allergy & Asthma Affiliates will be ClOSED today due to SNOW. Stay safe and enjoy!

12/23/2024

Merry Christmas and a Happy New Year! Our offices will be closed on Christmas Eve Day, Christmas Day and New Years Day! We are so thankful for each of our patients and thank God for the privilege to care for you and your family!

No matter what this season brings, love and joy or grief and pain, we pray you experience the Joy of Christmas through the Hope of Jesus!

Merry Christmas from Allergy & Asthma Affiliates!

06/10/2024

It is with great sympathy that we mark the passing of Dr. Robert M. Overholt, MD, local media personality, community and business leader, physician and colleague. We will all miss his quick wit, wisdom and energy. Our community is a better place due to his lifelong contributions and service.

With our Greatest Sympathy,

Dr. Don Ellenburg & the Staff at
Allergy & Asthma Affiliates

Dr. Robert Marion (Bob) Overholt passed away peacefully at his home on June 10, 2024. He was 85 years of age. Bob was born June 26, 1938 in Battle...

Address

Knoxville, TN

Telephone

+18655252640

Website

http://www.allergyaa.com/

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Our Story

With seven location throughout East Tennessee, Allergy & Asthma Affiliates has been serving the community in the treatment of allergies, asthma and immune disorders. We diagnose, treat and care for those who deal with allergies (environmental, food, drug and insect allergies), asthma, chronic sinus issues, skin disorders like eczema and hives, and chronic infections and immune system disorders. Since 1981, we have rendered the highest quality care to our patients, so they can feel better and live well. We care for patients of all ages, pediatric and adults.

Seven Locations: Fort Sanders/UT, Powell, Cedar Bluff, Maryville, Sevierville, Morristown, Oak Ridge.

Five Board Certified Allergists:

Dr. Don Ellenburg

Dr. Trent Ellenburg

Dr. Tim Frazier

Dr. Scout Robinson

Dr. Andy Singer

To better meet your needs, we also offer follow up and sick visit appointments with our expertly trained Certified Nurse Practitioners.

To schedule an appointment with one of our Board Certified Allergists, contact us today at 865-525-2640.

Allergy & Asthma Affiliates’ mission is to render high quality, consultative and specialized medical services to patients who suffer from allergic, asthmatic and immunologic disease. We are dedicated to:

the pursuit of a comprehensive approach in caring for the patient and their families

the promise of a diligent effort to cooperate with the primary care physician and communicate well with him or her

the premise that self-assessment skills and education are imperative to the successful treatment of these diseases

the principal that children are special and that their health issues must be addressed in context of their physical, emotional and mental development

the provision of high quality service delivered in a compassionate manner