Assistant Professor of Medicine
Associate Quality Officer, University Hospital
Assistant Director and Business Development Officer
Medical Director, 6-South Pulmonary Unit
Division of Pulmonary, Allergy & Critical Care Medicine

1720 2nd Avenue So, THT-422
University of Alabama at Birmingham
Birmingham, AL 35294

Board Certifications

1997, American Board of Internal Medicine
2009, American Board of Internal Medicine, Pulmonary Disease
2001, 2011 American Board of Internal Medicine, Critical Care Medicine
2009, American Board of Internal Medicine, Sleep Medicine
2000, American Board of Sleep Medicine


Medical School:  University of Arkansas College of Medicine, Little Rock, AR, 1994

MBA:  Auburn University, Auburn AL, 2011

Internship & Residency:  University of  Alabama at Birmingham, 1994-1997

University of Alabama at Birmingham, Pulmonary & Critical Care Medicine, 1997-2000

Contact Information


Campus Address:


 THT 422

Academic Office location:


 KB 225

Office Phone:


 (205) 934-3742

Office Fax (Academic):


 (205) 934-3743

Sleep/Wake Disorders Center


 (205) 930-8210



 (205) 930-8225

Email Address:

Beeper #:



Office Assistant:

Diane Blizard
Ph: (205) 934-3742

Fax: (205) 934-3743 

Brief Bio

Dr. John Lazenby joined the UAB faculty in August 2012 in the Division of Pulmonary, Allergy and Critical Care Medicine as Assistant Professor of Medicine. Prior to that, he spent 12 years in private practice in Arkansas and Georgia. Dr. Lazenby holds board certifications in Pulmonary Medicine, Critical Care Medicine, and Sleep Medicine, and is a fellow of both the American College of Chest Physicians and the American Academy of Sleep Medicine. He is Assistant Medical Director of the UAB Sleep/Wake Disorders Center where his extensive experience in the use of positive airway pressure (CPAP) for the management of sleep-disordered breathing is a decided asset. He has also worked as an intensivist in private practice, and is highly skilled in the management of critically-ill patients.  In addition to the practice of medicine, he has been heavily involved in business and administrative roles. Having completed a Master of Business Administration degree from Auburn University, Dr. Lazenby served as Financial Director and Chief Executive Officer of his former medical practice.  He has experience as Chair of the Department of Medicine at a community hospital, and he has also served as a Chief Medical Information Officer, where he helped with the organization and initiation of computerized physician order entry.  Currently, Dr. Lazenby practices pulmonary and critical care medicine at UAB Hospital where he serves as Medical Director of the inpatient Pulmonary unit (6-South) and as Associate Quality Officer, where he is involved in process improvement and patient safety initiatives. He also has an outpatient practice at the UAB Sleep/Wake Disorders Center at UAB Highlands Hospital. Dr. Lazenby completed his Internal Medicine residency and Pulmonary and Critical Care fellowship training at UAB. He is a native of Arkansas.    

Clinical Interests 

Sleep-disordered breathing and management of spesis/septic shock

Academic & Research Interests

Quality Improvement and Patient Safety

Key Publications

Williams LP, Narcessian EJ, Andersen OS, Waller G, Taylor MJ, Lazenby JP, Hinton JF, Koeppe RE.  Molecular and channel-forming characteristics of gramicidin K’s:  a family of naturally occurring acylated gramicidins.  Biochemistry 1992; 31:7311-7319.

Lazenby JP, Harding SM.  Chronic cough, asthma, and gastroesophageal reflux. Current Gastroenterol Rep 2000; 2:217-223

Lazenby JP,
Guzzo MR, Harding SM, Patterson PE, Johnson LF, Bradley LA. Oral corticosteroids increase esophageal acid contact times in patients with stable asthma.  Chest 2002; 121:625-634

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