Patrick Koo, MD
Pulmonologist
609 Elinor Street
Chattanooga, TN 37405
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62 providers
Availability last updated 10/30/2025
Patrick Koo, MD
Pulmonologist
609 Elinor Street
Chattanooga, TN 37405
Dr. Morrison comes to StatCare to practice in the field of pulmonary and critical care medicine. He graduated from Lake Erie College of Osteopathic Medicine. Dr. Morrison completed Internal Medicine Residency at Mercy Hospital with the University of Pittsburgh, PA and his Fellowship in 2009 at the University of Vermont, Burlington, VT. He has a special interest in advanced pulmonary diagnostics utilizing bronchoscopic computer navigation and endobronchial ultrasound techniques for diagnosing lung lesions. In addition to advanced diagnostics, he has an additional special interest in advanced interventional pulmonary including airway stenting, tumor debulking, bronchial thermoplastic, pleural diagnostics and interventions. He received his board certification from the American Board of Internal Medicine in 2006, Pulmonary Disease in 2008 and Critical Care Medicine in 2009 and remains board certified in both fields. Dr. Morrison is a member of the American College of Chest Physicians.
John Morrison, DO
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Zibas comes to StatCare to practice in the field of hospitalist internal medicine. She graduated from East Tennessee State University in 1992. Dr. Zibas completed a residency in Internal Medicine at UAB in Birmingham, followed by a chief residency at Baptist Health Systems in Birmingham. She received her board certification from the American Board of Internal Medicine in 1996 and currently remains board certified. Dr. Zibas is a member of the American Medical Association, Southern Medical Association, Tennessee Medical Association.
Lou Anne Zibas, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
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.
Abdelhamid Alsharif, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Kamran Boka has been with StatCare practicing pulmonary and critical care medicine since 2019. He completed his medical training in Detroit, Michigan, including an internship and residency in internal medicine at St. John Hospital & Medical Center, now Ascension, and his pulmonary critical care medicine fellowship from Henry Ford Health System. Dr. Boka previously practiced pulmonary and critical care medicine at a large academic university center, where his responsibilities included attending to critically ill patients in various subspecialty ICUs, maintaining his pulmonary clinic, and educating medical residents, pulmonary and critical care fellows, and medical students.
His special interests include bedside critical care medicine, point-of-care ultrasound, community medical education, and electronic-ICU.
Dr. Boka's approach to patients has been and continues to be compassionate bedside care; he performs this thorough in-depth empathic discussions with patients and their families. By conducting multidisciplinary rounding styles, he engages families, nurses, and critical care support teams on his rounds. Since practicing in academics, he continues to be a passionate educator who believes in a dedicated effort of further educating junior physicians and advanced practice practitioners on how to listen to patients, their needs, and desires, and that technology should only be used to augment and supplement the human touch.
He has consulted, led, and directed efforts on how to use social media in medicine and the education and practice of bedside critical care ultrasound (POCUS) at different programs. Among earning excellence in teaching awards, Dr. Boka has been nominated Physician of the Year and has won the honor of Top Doctors. He has held the national section editorial board position of Social Media Co-Editor for CHEST and its CHEST journal. He is a member of CHEST (American College of Chest Physicians) and the Society of Critical Care Medicine.
Dr. Boka spends his free time creating art through ink and digital media. He enjoys fitness, cooking, and spending time with his family.
Kamran Boka, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
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.
Rachel Samuel, DO
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Arabiat joined StatCare in 2022 to practice pulmonary & critical care medicine. He graduated from the University of Jordan and completed Residency at UIC Advocate Christ Medical Center. He completed his Critical Care Fellowship at the Warren Alpert Medical School of Brown University, and his Pulmonary Medicine Fellowship at the University of Kentucky Medical Center at Bowling Green. Dr. Arabiat received his board certification from the American Board of Internal Medicine in 2018, Pulmonary Medicine in 2022, and Critical Care Medicine in 2020. He is fluent in English and Arabic.
Mohammad Arabiat, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
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.
Mohamad Doleh, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Reichert practices pulmonary, critical care, and sleep medicine with StatCare. He graduated from Southern Illinois University, Springfield, IL. Dr. Reichert completed both Residency and his Fellowship at the University of Kentucky in Lexington, KY. He received his board certification from the American Board of Internal Medicine in 2005, Pulmonary Medicine in 2007, Critical Care in 2008, Sleep Medicine in 2011, and remains currently board certified in these fields. Dr. Reichert is a member of the American Thoracic Society, American College of Chest Physicians, and the ACP-ASIM.
Matthew Reichert, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Maroun joined StatCare in 2022 to practice pulmonary & critical care medicine. He graduated from the University of Balamand and completed Residency at Saint George Hospital. He completed his Critical Care Fellowship at the St. Elizabeth's Medical Center affiliated with Boston University, and his Pulmonary Medicine Fellowship at the University of Tennessee. Dr. Maroun is a member of the Society of Critical Care Medicine, the American Thoracic Society, and the American College of CHEST Physicians. He is fluent in English and Arabic, and he enjoys skiing, running, and swimming.
Ralph Maroun, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Zibas comes to StatCare to practice in the field of hospitalist internal medicine. He graduated from East Tennessee State University in 1992. Dr. Zibas completed Residency at University of Alabama Birmingham in 1996. He received his board certification from the American Board of Internal Medicine in 1996 and currently remains board certified. Dr. Zibas is a member of the American Medical Association, Southern Medical Association, Tennessee Medical Association.
Walter Zibas, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Since 1999, StatCare has been providing high-quality, personalized pulmonary and sleep medicine services to adults in and around Knoxville, Oak Ridge, and Athens, Tennessee. The practice is one of the largest privately held internal medicine hospitalist and pulmonary services groups in the nation and has accreditation from the Pulmonary Hypertension Association (PHA) as a certified center of excellence for the treatment of pulmonary hypertension.
With a focus on improving patient experience and treatment outcomes, the board-certified physicians take an evidence-based approach to care. They also value the importance of patient education to empower individuals to stay in control of their health.
StatCare offices feature advanced diagnostic technologies to identify conditions like pulmonary fibrosis, lung nodules and masses, and chronic obstructive pulmonary disease (COPD). The providers customize treatment plans using lifestyle changes, medications, and other non-surgical therapies to improve lung function and resolve symptoms like shortness of breath, wheezing, and fatigue.
The StatCare sleep clinic can address daytime sleepiness, cognitive issues, and other symptoms of sleep apnea, insomnia, and other sleep disorders. The outpatient sleep clinic provides resources like continuous positive airway pressure (CPAP) mask fittings and referrals for dental appliances to improve nighttime breathing.
StatCare providers are always striving to improve the patient experience. They offer in-office evaluations and can also meet with patients in nursing homes, hospitals, and other care settings. The providers serve as a communication bridge between primary care providers and specialists to ensure patients have the continuous care they deserve.
In addition to scheduled appointments, StatCare offers after-hours assistance 24 hours a day, 365 days a year, to address medical emergencies.
To schedule a consultation at StatCare, call the office near you or book an appointment online today.
22 Years of Service to the Community
18 Locations
Sunil Chulani, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Doers is the founding member of StatCare. He is the Managing Partner as well as practices in the field of pulmonary and critical care medicine. He graduated from University of Wisconsin Medical School in 1985. Dr. Doers completed both Residency in 1988 and his Fellowship in 1991 at the University of Cincinnati, OH. He received his board certification from the American Board of Internal Medicine in 1989, Pulmonary in 1990 and Critical Care Medicine in 1991 and currently remains board certified in these fields. Dr. Doers is a member of the American College of Physicians, American Thoracic Society, American College of Chest Physicians, Society of Critical Care, and Society of Hospital Medicine.
Jesse Doers, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
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.
Ikuyo Imayama, MD
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421
Dr. Zulma Swank is a Pulmonologist in Knoxville, TN and is affiliated with multiple hospitals in the area, including Fort Sanders Regional Medical Center and Parkwest Medical Center. Dr. Swank received her medical degree from Edward Via College of Osteopathic Medicine in Virginia and then completed her Internal Medicine residency at the University of Cincinnati Medical Center, followed by her Pulmonary/Critical Care Medicine fellowship at Virginia Commonwealth University. She began working with StatCare in 2022.
Dr. Swank is board certified in both Pulmonary and Critical Care Medicine, and has a special interest in asthma, interstitial lung disease, and the diagnosis of lung cancer. She is also trained in all aspects of lung disorders including COPD, pulmonary fibrosis, pulmonary hypertension, and more.
Dr. Swank enjoys her free time doing water activities, traveling, and rooting for her favorite sports team - Go Hokies!
Dr. Swank is fluent in English and Spanish.
Zulma Swank
Pulmonologist
6106 Shallowford Rd
Suite #100
Chattanooga, TN 37421