Meet Ohio State's team of pulmonary, critical care and sleep medicine experts

The Division of Pulmonary, Critical Care and Sleep Medicine comprises a comprehensive team of doctors and staff, all focused on delivering high-quality patient care, contributing to innovations in medicine and educating medical students and postgraduate trainees.

Our Leaders

Our leaders

Parsons leader

Jonathan Parsons, MD

Interim Director, Division of Pulmonary, Critical Care and Sleep Medicine

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JenniferMcCallister

Jennifer McCallister, MD

Director, Pulmonary and Critical Care Fellowship Program

Associate Professor - Clinical, Pulmonary, Critical Care and Sleep Medicine
Physician, FGP-Pulm, Critical Care and Sleep Medicine

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MeenaKhan

Meena Khan, MD

Director, Sleep Medicine Fellowship Program

Assistant Professor - Clinical, Pulmonary, Critical Care and Sleep Medicine
Assistant Professor - Clinical, Neurology
Physician, FGP-Pulm, Critical Care and Sleep Medicine

shaheenislam

Shaheen Islam, MBBS

Director, Interventional Pulmonary Fellowship Program

Associate Professor

Our Doctors
Our Researchers

Our Researchers

Sangwoon Chung, PhD

Research Assistant Professor, Pulmonary, Critical Care and Sleep Medicine
614-292-3494
Sangwoon.Chung@osumc.edu

473 W. 12th Ave.
Columbus, OH 43210

Manjula Karpurapu, PhD

Research Assistant Professor, Pulmonary, Critical Care and Sleep Medicine
Manjula.Karpurapu@osumc.edu

473 W. 12th Ave.
Columbus, OH 43210

Our Fellows

Pulmonary and Critical Care

Pulmonary and Critical Care Fellows

Pulmonary and Critical Care Fellows

Avi Cooper, MD Third year fellow

MD: Harvard Medical School
Residency program: Beth Israel Deaconess Medical Center

Clinical interests: Critical care, general pulmonary
Research interests: Medical education
Hometown: Atlanta, GA

Bio: Avi Cooper was born in Atlanta, Georgia and moved to Boston, Massachusetts in high school. He attended Yeshiva University in New York City where he studied English literature and biology and graduated summa cum laude as valedictorian. He attended medical school at Harvard University where he was selected for a research fellowship through the Howard Hughes Medical Institute. He remained in Boston for his Internal Medicine residency at Beth Israel Deaconess Medical Center where he developed an interest in medical education and completed a clinician educator track. As a senior resident Avi was selected by his peers to receive the Lowell McGhee award for excellence in teaching and joined the Gold Humanism Honor Society. He came to The Ohio State University in 2016 for fellowship. 

During fellowship he has helped develop a small group-based core curriculum for residents rotating in the MICU and is investigating techniques to help enhance the educational value of MICU rounds. Avi also served as the primary preceptor for a pre-clinical Ohio State medical student in his fellow's clinic for the Longitudinal Practice curriculum and received departmental recognition for his research into transitions in training from medical school to residency. He has co-authored a textbook chapter with Dr. McCallister on teaching pulmonary/critical care fellows and was awarded the Robert J. Fass Award for Outstanding Clinical Fellow from the Department of Medicine during his second year. He currently serves as an associate editor for the Journal of Graduate Medical Education. His clinical research interests center on the prevention of organ injury in sepsis. 

Outside of medicine, Avi enjoys spending time with his wife and son, drinking good cold-brewed coffee, playing classical piano, and training for (short) triathlons.

Stephen Doyle, DO, MBA Third year fellow

MD:  Kansas City University
Residency program:  University of Kansas

Clinical interests: Sepsis, critical care, COPD
Research interests: Sepsis, critical care, COPD, medical education, quality improvement
Hometown: Grand Rapids, MI

Derrick Herman, MD Third year fellow

MD: University of Cincinnati
Residency program: The Ohio State University Wexner Medical Center

Van Le, MD Third year fellow

MD: Boston University
Residency program: ­­­­­Lahey Clinic

Virgil Secasanu, MD Third year fellow

MD: University of Central Florida
Residency program: University of Colorado

Clinical interests:  Interventional pulmonology, critical care
Research interests: Bioengineering, medical device development, pleurodosis, interventional pulmonology
Hometown: Cumming, GA

Joanna Tsai, MD Third year fellow

MD: The Ohio State University College of Medicine
Residency program: The Ohio State University Wexner Medical Center

Clinical interests: Critical care, end of life care, sepsis, lung cancer
Research interests: Clinical outcomes, sepsis, lung cancer
Hometown: North Potomac, MD

Megan Conroy, MD Second year fellow

MD: The Ohio State University College of Medicine
Residency program: MedStar Georgetown University Hospital

Clinical interests: Critical care, sepsis, general pulmonary medicine
Research interests: Medical education, quality improvement, critical care
Hometown: Gaithersburg, Maryland

 

More +

Elie Homsy, MD Second year fellow

MD: The Ohio State University College of Medicine
Residency program: The Ohio State University/Nationwide Children's Hospital (Med-Peds)

Clinical interests: Ultrasound, critical care, pulmonary hypertension
Research interests: Pulmonary hypertension
Hometown: Beirut, Lebanon 

Jennica Johns, MD Second year fellow

MD: The Ohio State University College of Medicine
Residency program: The Ohio State University Wexner Medical Center
Fellowship Program: The Ohio State University Wexner Medical Center (Hospice and Palliative Medicine) 

Kevin Patterson, MD Second year fellow

MD: Michigan State College of Human Medicine
Residency program: The Ohio State University Wexner Medical Center

Clinical interests: COPD, critical care
Research interests: Medical education, clinical outcomes 
Hometown: Rochester Hills, Michigan

 

Arindam (AJ) Singha, MD Second year fellow

MD: State University of New York Upstate
Residency program: The Ohio State University Wexner Medical Center

 

Ryan Story, MD Second year fellow

MD: The Ohio State University College of Medicine
Residency program: Vanderbilt University

Clinical interests: Critical care
Research interests: Point of care ultrasound, critical care 
Hometown: Pittsburgh, PA

 

Blake Chopin, MD First year fellow

MD:  Georgetown University School of Medicine
Residency Program: 
MedStar Georgetown University Hospital, Internal Medicine 

Clinical Interests: 
Interstitial Lung Disease
Research Interests: 
Interstitial Lung Disease and Quality Improvement
Hometown: 
Kansas City, MO

Kevin Ho, MD First year fellow

MD: Wayne State University
Residency Program:
Michigan

Clinical Interests:
Pleural Disease
Research Interests:  
Pleural Disease
Hometown:
Rochester Hills, Michigan

Nihal Patel, MD First year fellow

MD:   The Ohio State University
Residency Program:
University of Maryland

Clinical Interests:
Sepsis, ARDS
Research Interests:
Healthcare economics, critical care outcomes and occupational health
Hometown:
Los Angeles, CA

Rachel Quaney, MD First year fellow

MD: University of Kansas School of Medicine
Residency Program:
University of South Carolina Greenville

Clinical Interests:
Critical care and sepsis
Research Interests:
Critical care outcomes, medical education, quality improvement
Hometown:
Wichita, KS

Brittany Rosales, MD First year fellow

MD: Texas Tech University Health Sciences Center
Residency Program:
Internal Medicine, Texas Tech University Health Sciences Center

Clinical Interests:
Critical care medicine
Hometown:
La Porte, Texas

George Venious, MD First year fellow

MD: Indiana University School of Medicine
Residency Program:
Internal Medicine, The Ohio State University Wexner Medical Center

Clinical Interests:
General pulmonology and critical care
Hometown:
New Hudson, MI

Interventional Pulmonology

Interventional Pulmonology Fellow

Interventional Pulmonology Fellow

Prarthna Chandar, MD 2018-2019 Fellow

MD: Government Kilpauk Medical College
Residency program: Maimonides Medical Center (India)

Clinical interests: Pulmonary, critical care, Interventional Pulmonology
Research interests: Endobronchial valves, medical thoracoscopy
Hometown: Chennai, India
 

Sleep Medicine

Sleep Medicine Fellows

Sleep Medicine Fellows

Madelyn Rosenthal, MD

Med School: Saint George’s University School of Medicine

Residency:
University of Texas Health Science Center at Houston-McGovern Medical School

Sleep Medicine and Sleep Research interest

Hometown:
Houston, Texas

Steven Holfinger, MD

Med School: Wright State University Boonshoft School of Medicine

Residency:  
Riverside Methodist Hospital Columbus, OH

Sleep Medicine and Sleep Research interest

Hometown:
Garfield Hts, OH

Lung Transplant

Lung Fellow

Lung Fellow

Molly Howsare, DO

DO: Lake Erie College of Osteopathic Medicine
Residency program: St. Elizabeth Health Center in Youngstown, OH; University of Louisville

Clinical Interest
: Lung Transplant and Critical Care Medicine
Research Interest: Infectious causes after transplant, causes of chronic lung allograft dysfunction
Hometown: Transfer, Pennsylvania
 

Our nurse practitioners and physician assistants

 

Ruthann Kennedy, CNP

     

 

Rebecca Cloyes, CNP

     

 

Jessica Schweller, CNP, RRT 

 

 

Gretchen Whitby, CNP 

     

 

Christina Sawyer, CNP

     

 

Lindsey Schulze, CNP

 

 

Amanda Meek, CNP 

     

 

Daniel Miller, CNP 

     

 

Melanie Lyons, PhD, CNP

 

Administrative Staff

Natalie Clum
Division Administrator
Natalie.Clum@osumc.edu
 

Kayla McElroy 
Assistant to the
Division Director
Kayla.McElroy@osumc.edu

   Stephanie Postma
Education Program
Coordinator
Stephanie.Postma@osumc.edu
 
           
Dena Baird
Sleep Fellowship Program Coordinator
Office Associate
Dena.Baird@osumc.edu
  Kelli Banks
IP and Transplant Program
Coordinator Office Associate
Kelli.Banks@osumc.edu
     Christina Olsson
Pulmonary and Critical Care Fellowship
Program Coordinator
Christina.Olsson@osumc.edu
 
           
Lisa Duke
Administrative and Fiscal
Operations Manager
Lisa.Duke@osumc.edu
     Thomasina Browder-Long
Office Associate
Thomasina.Browder-Long@osumc.edu
 

Davin Riley
Office Associate
Davin.Riley@osumc.edu