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Brendan J. Kelly, MD

Brendan J. Kelly, MD Physician

Assistant Professor of Medicine at the Hospital of the University of Pennsylvania Assistant Professor of Epidemiology in Biostatistics and Epidemiology

Languages spoken:

  • Spanish

Dr. Kelly is employed by Penn Medicine.

Patient Satisfaction Ratings

Patient Rating Breakdown

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

Overall Ratings

Clinical Specialties


  • Infectious Diseases

Programs & Centers:

Board Certification:

  • Infectious Disease, 2012
  • Internal Medicine, 2010

Clinical Expertise:

  • Aspergillosis
  • Bone Infection (Osteomyelitis)
  • C. Difficile (Clostridium Difficile Diarrhea)
  • Cellulitis
  • Flu (Influenza)
  • Flu Shot Vaccination
  • Genital Warts (Condyloma Acuminatum)
  • Hepatitis
  • Hepatitis B
  • Hepatitis C
  • Herpes Simplex Virus (HSV)
  • HIV and AIDS
  • Joint Infection
  • Lyme Disease
  • Malaria
  • Meningitis
  • Mycobacterium
  • Pneumonia
  • Prosthetic Joint Infection
  • Sexually Transmitted Diseases (STD)
  • Shingles
  • Staph Infection
  • Swollen Lymph Nodes
  • Syphilis
  • Travelers' Diarrhea
  • Tuberculosis (TB)
View More

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Columbia University
Residency: NewYork-Presbyterian/Columbia University Medical Center
Fellowship: Hospital of the University of Pennsylvania


American Society of Microbiology (ASM), National Infectious Diseases Society of America (IDSA), National

Hospital Affiliation

Dr. Kelly is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Medicine Rittenhouse Long-Term Acute Care Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.


Description of Research Expertise:

microbial ecology; next-generation sequencing; respiratory tract microbiome; ventilator-associated infection; Clostridium difficile infection

Selected Publications:

Kelly BJ, Lautenbach E, Han JH: The authors reply Crit Care Med 47 (3): e275-e276,2019.

Knecht VR, McGinniss JE, Shankar HM, Clarke EL, Kelly BJ, Imai I, Fitzgerald AS, Bittinger K, Bushman FD, Collman RG: Molecular analysis of bacterial contamination on stethoscopes in an intensive care unit Infect Control Hosp Epidemiol : 1-7,2018.

Ziegler M, Han JH, Landsburg D, Pegues D, Reesey E, Gilmar C, Gorman T, Bink K, Moore A, Kelly BJ: Impact of levofloxacin for the prophylaxis of bloodstream infection on the gut microbiome in patients with hematologic malignancy Infectious Diseases Society of America (IDSA) Annual ID Week 2018 : 2018.

Weingart MF, Vecker RF, Fitzpatrick R, Lautenbach E, Pegues DA, Kelly BJ: Electronic records of daily subglottic suctioning predict infectious and non-infectious adverse ventilator-associated events during critical care Infectious Diseases Society of America (IDSA) Annual ID Week 2018 : 2018.

Clarke E, Reesey E, Lautenbach E, Wernovsky E, Kelly BJ: Modeling changes in gastrointestinal and respiratory tract bacterial community diversity attributable to common antibiotic exposures during long-term acute care Infectious Diseases Society of America (IDSA) Annual ID Week 2018 : 2018.

Kelly BJ, Lautenbach E, Nachamkin I, Coffin SE, Gerber JS, Fuchs BD, Garrigan C, Han X, Bilker WB, Wise J, Tolomeo P, Han JH: Combined Biomarkers Predict Acute Mortality Among Critically Ill Patients With Suspected Sepsis Crit Care Med 46 (7): 1106-1113,2018.

Agarwal R, Bartsch SM, Kelly BJ, Prewitt M, Liu Y, Chen Y, Umscheid CA: Newer glycopeptide antibiotics for treatment of complicated skin and soft tissue infections: a systematic review, network meta-analysis and cost analysis Clin Microbiol Infect 24 (4): 361-368,2018.

Kelly BJ, Tebas P: Clinical practice and infrastructure review of fecal microbiota transplantation for Clostridium difficile infection Chest 153 (1): 266-277,2018.

Kelly BJ, Rivera J, Pirofski LA: Oropharyngeal Bacterial Community Composition Correlates with Baseline and Post-Vaccination Pneumococcal Polysaccharide Antibody Levels in HIV-Infected Subjects Infectious Diseases Society of America (IDSA) Annual ID Week 2017 : 2017.

Kelly BJ, Bushman FD, Collman RG, Lautenbach E: Nasal Microbiome Features of Staphylococcus aureus Colonization and Infection During Critical Illness NIH Human Microbiome Project Workshop 2017 : 2017.

View all publications

Academic Contact Info

731 Blockley Hall
Philadelphia, PA 19104
Patient appointments: 800-789-7366 (PENN)