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Dr. Byrd comes to StatCare to practice in the field of pulmonary and critical care medicine with a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. She graduated from Harvard University in 1986. Dr. Byrd completed both Residency in 1995 and her Fellowship in 1998 at the University of Alabama.  She received her board certification from the American Board of Internal Medicine in 1995, Pulmonary Disease in 1998, Critical Care Medicine in 2010 and currently remains board certified in these fields. Dr. Byrd is the Medical Director for Outpatient Services for StatCare.  She is a member of the American College of Chest Physicians and the Tennessee Medical Association.

Dr. Byrd comes to StatCare to practice in the field of pulmonary and critical care medicine with a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. She graduated from Harvard University in 1986. Dr. Byrd completed both Residency in 1995 and her Fellowship in 1998 at the University of Alabama.  She received her board certification from the American Board of Internal Medicine in 1995, Pulmonary Disease in 1998, Critical Care Medicine in 2010 and currently remains board certified in these fields. Dr. Byrd is the Medical Director for Outpatient Services for StatCare.  She is a member of the American College of Chest Physicians and the Tennessee Medical Association.

Dennis Kellar, MD, is the owner and CEO of Northwest Pulmonary and Sleep Medicine in Algonquin, Illinois. He is a board-certified multispecialty physician, providing his patients with expert care. 

Some of his many areas of expertise include trauma/critical care, pulmonary diseases, sleep disorders, and complex long-term respiratory and ventilator care. 

Dr. Kellar has been serving the community for over 20 years. He received his bachelor’s degree in biology from the University of South Florida in Tampa, Florida, and his medical degree from Ross University School of Medicine. 

Dr. Kellar’s training includes an internal medicine residency at Cook County Hospital and completing pulmonary, critical care, and sleep medicine fellowship as a chief fellow at RUSH University Medical Center in Chicago, Illinois. 

Dr. Kellar has served as a clinical assistant professor of medicine at the University of Illinois College of Medicine Rockford in Rockford, Illinois. He is a veteran of the United States Army and served with the 101st airborne division. Dr. Kellar also holds numerous director positions, including medical director for several ventilator care and COVID-19 units in the northwest suburbs. 

He served as the previous director of respiratory therapy for Illinois and director of pulmonary sleep services for an extensive health system in Northern Illinois. Dr. Kellar has been published in numerous areas covering pulmonary and critical care and was appointed as a special investigator of the coroner’s office in Mchenry County.

Dr. Estes has been practicing pulmonary and critical care in Knoxville, TN since 1991 and has been with StatCare practicing pulmonary and critical care since 2000. He graduated from the University of Florida in 1980, and medical school from the University of South Florida in 1984.  He completed his internship and residency at the University of Alabama Birmingham hospitals and pulmonary critical care fellowship at the University of Tennessee, Memphis, completing in 1989.  Dr. Estes has a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. He received his board certification from the American Board of Internal Medicine in 1987, Pulmonary and Critical Care Medicine in 1989 and remains board certified in both fields. Dr. Estes is a member of the American College of Chest Physicians, Tennessee Thoracic Society, American Thoracic Society, and Society of Critical Care Medicine.

Dr. Estes has been practicing pulmonary and critical care in Knoxville, TN since 1991 and has been with StatCare practicing pulmonary and critical care since 2000. He graduated from the University of Florida in 1980, and medical school from the University of South Florida in 1984.  He completed his internship and residency at the University of Alabama Birmingham hospitals and pulmonary critical care fellowship at the University of Tennessee, Memphis, completing in 1989.  Dr. Estes has a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. He received his board certification from the American Board of Internal Medicine in 1987, Pulmonary and Critical Care Medicine in 1989 and remains board certified in both fields. Dr. Estes is a member of the American College of Chest Physicians, Tennessee Thoracic Society, American Thoracic Society, and Society of Critical Care Medicine.

Dr. Alsharif practices pulmonary, critical care, and sleep medicine with StatCare. He graduated from the University of Tennessee College of Medicine, Memphis, Tennessee. Dr. Alsharif completed both Residency and Fellowship at the University of Tennessee Health Science Center, Memphis, Tennessee. He received his board certification from the American Board of Internal Medicine in 2012, Pulmonary Medicine in 2014, Critical Care Medicine in 2015, and Sleep Medicine in 2016. Dr. Alsharif is a member of the American Academy of Sleep Medicine, the American Thoracic Society, and the American College of Chest Physicians.

Dr. Paul practices pulmonary, critical care, and sleep medicine with StatCare. He graduated from Kottayam Medical College, Kerela, India. Dr. Paul completed his Residency at the New York Methodist hospital in 2000.  He then attended his Pulmonary/Critical Care Fellowship at The Penn State University Milton S. Hershey Medical Center in Hershey, PA in 2003.  He received his board certification from the American Board of Internal Medicine in 2000, Pulmonary Medicine in 2003, Critical Care in 2004, Sleep Medicine in 2004 and currently remains board certified in these fields. 

Dr. Doleh comes to StatCare to practice in the field of hospitalist internal medicine. He graduated from Case Western Reserve University in 2003. Dr. Doleh completed his internal medicine residency at University Hospitals of Cleveland in 2006. He received his board certification from the American Board of Internal Medicine in 2007 and currently remains board certified. 

Dr. Swisher comes to StatCare practicing in the field of pulmonary and critical care medicine since 1995. He completed undergraduate, Master of Science and Doctor of Philosophy programs at The Pennsylvania State University prior to obtaining a Doctor of Medicine degree at Jefferson Medical College. Subsequently, Dr. Swisher completed an Internal Medicine Residency in 1992 and Pulmonary/Critical Care Fellowship in 1995 at The Pennsylvania State University College of Medicine in Hershey, PA.  He maintains board certification from the American Board of Internal Medicine in Internal Medicine, Pulmonary Disease, and Critical Care Medicine. Dr. Swisher is a member of the American College of Chest Physicians, American Thoracic Society, Pulmonary Hypertension Association, Society of Critical Care Medicine and Christian Medical and Dental Association.   His special interest is pulmonary vascular diseases.

Dr. Imayama joined StatCare to practice pulmonary and critical care medicine in 2024.
She received her medical degree from Kyushu University in Fukuoka, Japan, completed Internal Medicine Residency training at Saint Francis Medical Center, and Fellowship training at the University of Illinois Chicago.
Dr. Imayama is board-certified in Critical Care, Pulmonary, and Sleep Medicine.

Bio Comming Soon!

Dr. Luchsinger comes to StatCare to practice in the field of pulmonary and critical care medicine. He graduated from Medical College of Wisconsin in 1987. Dr. Luchsinger completed Residency in 1990 at the University of Cincinnati and his Fellowship in 1995 at the National Naval Medical Center, Bethesda, MD.  He received his board certification from the American Board of Internal Medicine in 1990, Pulmonary Disease in 1994, Critical Care Medicine in 1995 and currently remains board certified in Pulmonary and Critical Care Medicine. Dr. Luchsinger is a member of the American College of Chest Physicians, American Thoracic Society and the Tennessee Medical Association.

 Dr. Samuel is a native of Bristol, TN and moved to Knoxville in 2020 when she joined StatCare.  She graduated from Emory & Henry College in 2009, and medical school from Via College of Osteopathic Medicine in Blacksburg, VA in 2014.  She completed residency at OhioHealth Riverside Methodist Hospital in Columbus, OH in 2017, and pulmonary and critical care fellowship at Virginia Commonwealth University in Richmond, VA in 2020.  Dr. Samuel has special pulmonary interests in interstitial lung disease as well as early detection and diagnosis of lung cancer.  Dr. Samuel is board certified by ABIM in Internal Medicine (2017), Pulmonary Medicine (2019), and Critical Care Medicine (2020).  In her free time, she loves traveling domestically and internationally, snow skiing, lounging by any time of water, and of course, Tennessee Volunteer football.

Dr. Pugh comes to StatCare to practice in the field of pulmonary and critical care medicine. He completed his Bachelor of Arts at the University of Tennessee, Knoxville (2010). He became a Doctor of Medicine in 2015 before completing both Residency and Fellowship at the University of Tennessee. He is a member of the American Medical Association, American College of Chest Physicians, American Thoracic Society, and the SVMIC Forum. 

Dr. Imayama joined StatCare to practice pulmonary and critical care medicine in 2024.
She received her medical degree from Kyushu University in Fukuoka, Japan, completed Internal Medicine Residency training at Saint Francis Medical Center, and Fellowship training at the University of Illinois Chicago.
Dr. Imayama is board-certified in Critical Care, Pulmonary, and Sleep Medicine.