Find Out Who Are the Lung Institute Doctors

At the Lung Institute, our purpose shows in everything we do. The cellular research and treatments our medical professionals conduct improves the lives of those who need help most. Here is a quick introduction to our doctors. For more information about our terrific medical staff, visit our “About” page.

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Jack Coleman, Jr., MD

Jack Coleman, Jr., MD, is the Medical Director of our facility in Nashville, TN. He earned his medical degree from the University of Cincinnati and completed his internship and general surgery residency at the same institution. Moving to Pennsylvania, Dr. Coleman became otolaryngology resident at the University of Pittsburgh Eye and Ear Hospital. He also served as a Lieutenant Commander and Commander in the United States Naval Reserve.

In addition to being a diplomate of the National Board of Medical Examiners, Dr. Coleman is Board Certified in Otolaryngology and is a Fellow of the American Academy of Otolaryngology and Head and Neck Surgery. He is also a Fellow with the American College of Surgeons and holds membership in the American Academy of Cosmetic Surgery,Association of Military Surgeons of the United States and the Pan-American Society of Otolaryngology.

Along with his distinguished medical career, Dr. Coleman is a published author for several medical books and is referenced in numerous medical journals. Listed below is Dr. Coleman’s Board Certification information, educational record and various professional and academic honors that he has achieved.

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Sreedevi Marakatham, MD

Sreedevi Marakatham, MD, is one of the physicians at our facility in Dallas, Texas. She attended medical school at the University of Kerala in Kerala, India, followed by a three-year residency at Kingsbrook Jewish Medical Center in Brooklyn, New York. During her residency program, she continued her education and training in outpatient and inpatient care, critical care units, and emergency care. Dr. Marakatham also completed a rotation at the Kingsbrook Center’s attached nursing home, gaining valuable experience in Geriatric care. In her third and final Kingsbrook residency, Dr. Marakatham took the lead as Chief Medical Resident.

Her work experience and special interest in treating people with chronic health conditions brought her to Texas. Dr. Marakatham served at Community Oriented Primary Care, part of the Parkland Health and Hospital System. As Attending Physician in the Adult Module, she provided comprehensive primary care, health screening, immunizations, and treated people with acute and chronic medical conditions. While working in primary care, she saw a high volume of chronic pulmonary patients and was excited to find the Lung Institute’s treatment options for patients with lung disease. Listed below are Dr. Marakatham’s board certification information, educational and work record, and various professional and academic honors.


If you or a loved one is living with a lung disease and would like to learn more about all available treatment options, we can help. Please contact a patient coordinator today at (800) 729-3065 to schedule a free consultation.
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* Every patient is given a Patient Satisfaction Survey shortly after treatment. Responses to the 11-question survey are aggregated to determine patient satisfaction with the delivery of treatment.

^ Quality of Life Survey data measured the patient’s self-assessed quality of life and measurable quality of improvement at three months.

All claims made regarding the efficacy of Lung Institute's treatments as they pertain to pulmonary conditions are based solely on anecdotal support collected by Lung Institute. Individual conditions, treatment and outcomes may vary and are not necessarily indicative of future results. Testimonial participation is voluntary. Lung Institute does not pay for or script patient testimonials.

As required by Texas state law, the Lung Institute Dallas Clinic has received Institutional Review Board (IRB) approval from MaGil IRB, now Chesapeake IRB, which is fully accredited by the Association for the Accreditation of Human Research Protection Program (AAHRPP), for research protocols and procedures. The Lung Institute has implemented these IRB approved standards at all of its clinics nationwide. Approval indicates that we follow rigorous standards for ethics, quality, and protections for human research.

Each patient is different. Results may vary.