Critical Care Medicine

Welcome to Critical Care Medicine

Aftab Ahmed, MD

Aftab Ahmed, MD Critical Care/ Intensivist
Diplomate American Board of Internal Medicine

Specializing in:

  • Acute Respiratory Distress Syndrome
  • End Organ Preservation and Resuscitation
  • ICU Delirium
  • Non-Invasive and Invasive Mechanical Ventilation
  • Septic and Cardiac Shock
  • Tele-ICU

Dr. Ahmed graduated from King Edward Medical University, Lahore, Pakistan. He completed his residency in Internal Medicine at University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma. He then did fellowship in Critical Care Medicine at Geisinger Commonwealth School of Medicine, Danville, Pennsylvania.

Charles W. Callender, MD

Charles W. Callender, MD Critical Care & Pulmonary Medicine

Specializing in the treatment of:

  • Asthma
  • COPD
  • Cystic Fibrosis
  • Insomnia
  • Lung Cancer
  • Narcolepsy
  • Parasomnia
  • Pulmonary Embolism
  • Pulmonary Fibrosis
  • Pulmonary Hypertension
  • Pulmonary Infections
  • Restless Leg Syndrome
  • Sleep Apnea

Before joining Pulmonology Associates Atrium Health Navicent Physician Group, Dr. Callender served as a Professor of Medicine at Mercer University Medical School, Medical Director of Sentara Norfolk General Hospital and Assistant Professor of Medicine at East Virginia Medical School. He was also a Fellow of both Pulmonary and Critical Care Medicine and Interventional Bronchoscopy at Henry Ford Hospital.

Christopher M. Franklin, MD

Christopher M. Franklin, MD

Christopher M. Franklin MD earned his Bachelor of Science in Biology from Augusta State University. After graduating, he attended the Medical College of Georgia where he received his Doctor of Medicine. He completed his residency training in Anesthesiology and fellowship training in Critical care medicine at the University of Maryland Medical Center in Baltimore, MD.

Dr. Franklin has been practicing Anesthesiology and Critical care medicine for the past six years at the University of Maryland Medical Center in Baltimore, MD. He specializes in the care of the critically ill and the management of postoperative patients. Dr. Franklin's interests include the management of shock, resuscitation, and airway management in addition to resident and fellow education.

Dr. Franklin is board certified in both Anesthesiology and Critical care medicine. Additionally, he is a member of the American Society of Anesthesiology and the Society of Critical Care Medicine.

Muhammad Khan, MD

Muhammad Khan, MD Critical Care/Intensivist
Board Certified in Internal Medicine and Pulmonary Medicine

Specializing in:

  • Endobronchial Bronchoscopic
  • Placement of Indwelling Pleuralcatheters
  • Simple Bronchoscopies Procedures
  • Simple Pleural Procedures
  • Transbronchial Lung Biopsies
  • Ultrasound Guided Biopsies (EBUS)

Dr. Khan received his medical degree from Dow Medical College, Karachi, Pakistan. He then moved to the United States and pursued a Master's in Public Health degree at the University of Oklahoma Health Sciences Center. Dr. Khan completed his internal medicine residency at the University of Oklahoma Health Sciences Center followed by fellowship in Pulmonary and Critical Care medicine.