Dr. Timothy Chappell , M.D. graduated from the University of Nebraska College of Medicine Summa Cum Laude and moved to Dallas for postgraduate training. He did his internship and residency in Internal medicine and a fellowship in Pulmonary Medicine at UT Southwestern. He then was appointed to the faculty of UT Southwestern Medical School as an Assistant Professor of Medicine. Dr. Chappell established his practice in Plano in 1985.
Dr. Timothy Chappell , M.D. graduated from the University of Nebraska College of Medicine Summa Cum Laude and moved to Dallas for postgraduate training. He did his internship and residency in Internal medicine and a fellowship in Pulmonary Medicine at UT Southwestern. He then was appointed to the faculty of UT Southwestern Medical School as an Assistant Professor of Medicine. Dr. Chappell established his practice in Plano in 1985.
The reviews listed below were collected independently of Collin County Pulmonary Associates through rater8. Each review represents an authentic and verified patient experience.
He is the best doctor ever! He listens to you and explains everything! I would definitely recommend him to anyone!
(1 week ago)
Dec-2025
Dr Timothy Chappell is an extraordinary physician. He has been treating my sleep apnea for years and has always given me the time each visit to discuss every little detail of my concerns. His staff is outstanding, assisting me in getting supplies for my CPAP machine, scheduling appointments and answering any questions I may have. Scheduling is a very simple process at this practice, they are also nimble and flexible meeting my scheduling needs and changes that may occur. I saw Dr. Chapel today and it was just another outstanding visit. As I was waiting for him and is waiting room, I notice his diploma hanging on the wall Showing that he graduated from medical school in 1975. I feel good shaking his hand and congratulating him on that unbelievable 50 year anniversary. He was genuinely humbled and told me he felt blessed that he still loves what he does. That sums up why I drive from Celina to Allen Just to see him. Everything about the Care and treatment always exceeds expectations.
(2 weeks ago)
Dec-2025
Excellent visit, spent time exploring and explaining everything thing with me, very rare these days. I would recommend Dr Chappell very highly.
(2 weeks ago)
Dec-2025
Dr Chappell is a patient’s doctor. He takes the time to understand your troubles and prompt to find a palliative, if a cure is not imminent. He’s never in a hurry to leave you and get to the next body in line. I don’t mind a long drive to his office; I don’t want any other pulmonologist taken care of me. He’s the best!
(3 weeks ago)
Dec-2025
Dr Chappel is one of the most personable and capable doctors that I have ever had. He has done a wonderful job diagnosing my issue and solving my health concern. I value him as my doctor.
(3 weeks ago)
Dec-2025
Wonderful. Great listener and very efficient office environment with a majority of needed services on-site.
(3 weeks ago)
Dec-2025
He is the best so kind and caring he never rush you he listens
(3 weeks ago)
Dec-2025
Amazing physician!! Good listener and excellent suggestions for problem.
(1 month ago)
Dec-2025
Dr. Chappell is an amazing physician
who demonstrates his knowledge, experience, and care for his patients.
He is a remarkable doctor and individual.
(1 month ago)
Dec-2025
Caring...Knowledgable...Great Listener
(1 month ago)
Dec-2025
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Collin County Pulmonary Associates
1101 Raintree Circle, Suite 100 Twin Creeks Medical Building Two Allen, TX 75013
Dr. Timothy Chappell, M.D. graduated from the University of Nebraska College of Medicine Summa Cum Laude and moved to Dallas for postgraduate training. He did his internship and residency in Internal medicine and a fellowship in Pulmonary Medicine at UT Southwestern. He then was appointed to the faculty of UT Southwestern Medical School as an Assistant Professor of Medicine. In addition to teaching at Parkland and clinical research at the medical school, he also served as Medical Director of Respiratory Care and Assistant Chief of Pulmonary at the Veterans Administration Medical Center in Dallas.
Dr. Chappell’s research at the Medical School has been published in numerous professional journals and he has been an invited lecturer for prestigious organizations such as the American Thoracic Society, the American Federation of Clinical Research, the American Heart Association and the American Lung Association.
Dr. Chappell established his practice in Plano in 1985. He has been the Medical Director of Respiratory Care at Collin College since 1990 and a member of the Texas Medical Board since 2016.
He is the best doctor ever! He listens to you and explains everything! I would definitely recommend him to anyone!
Dr Timothy Chappell is an extraordinary physician. He has been treating my sleep apnea for years and has always given me the time each visit to discuss every little detail of my concerns. His staff is outstanding, assisting me in getting supplies for my CPAP machine, scheduling appointments and answering any questions I may have. Scheduling is a very simple process at this practice, they are also nimble and flexible meeting my scheduling needs and changes that may occur. I saw Dr. Chapel today and it was just another outstanding visit. As I was waiting for him and is waiting room, I notice his diploma hanging on the wall Showing that he graduated from medical school in 1975. I feel good shaking his hand and congratulating him on that unbelievable 50 year anniversary. He was genuinely humbled and told me he felt blessed that he still loves what he does. That sums up why I drive from Celina to Allen Just to see him. Everything about the Care and treatment always exceeds expectations.
Excellent visit, spent time exploring and explaining everything thing with me, very rare these days. I would recommend Dr Chappell very highly.
Dr Chappell is a patient’s doctor. He takes the time to understand your troubles and prompt to find a palliative, if a cure is not imminent. He’s never in a hurry to leave you and get to the next body in line. I don’t mind a long drive to his office; I don’t want any other pulmonologist taken care of me. He’s the best!
Dr Chappel is one of the most personable and capable doctors that I have ever had. He has done a wonderful job diagnosing my issue and solving my health concern. I value him as my doctor.
Wonderful. Great listener and very efficient office environment with a majority of needed services on-site.
He is the best so kind and caring he never rush you he listens
Amazing physician!! Good listener and excellent suggestions for problem.
Dr. Chappell is an amazing physician who demonstrates his knowledge, experience, and care for his patients. He is a remarkable doctor and individual.
Caring...Knowledgable...Great Listener