John Penner, MD
Assistant Professor
Medicine
School of Medicine

He is based at the San Francisco VA Medical Center, where he sees patients and teaches residents and medical students in the emergency room, urgent care clinic, and inpatient wards.

He also directs the internal medicine residency's Clinical Teaching Elective and is President of The Clinical Problem Solvers, a multimedia platform that aims to disseminate and democratize clinical reasoning education through a podcast, live virtual morning report, and diagnostic reasoning app.

His academic interests are clinical reasoning, workplace teaching and learning, and clinical teacher development.

• The cognitive apprenticeship: advancing reasoning education by thinking aloud.
  Diagnosis (Berlin, Germany) 2022 Jagannath AD, Dreicer JJ, Penner JC, Dhaliwal G
• A silver lining.
  Journal of hospital medicine 2022 Fretz A, Penner JC, Bainbridge ED, Babik JM
• Diagnostic Momentum in Acute Liver Injury: an Exercise in Clinical Reasoning.
  Journal of general internal medicine 2022 Thomas I, Roberts A, Sharma S, Penner J, Taddei T
• Capturing what matters: A retrospective observational study of advance care planning documentation at an academic medical center during the COVID-19 pandemic.
  Palliative medicine 2021 Sun F, Lipinsky DeGette R, Cummings EC, Deng LX, Hauser KA, Kopp Z, Penner JC, Scott BS, Raffel KE, Kantor MA
• How preceptors develop trust in continuity clinic residents and how trust influences supervision: A qualitative study.
  Perspectives on medical education 2021 Penner JC, Hauer KE, Julian KA, Sheu L
• Morning report goes virtual: learner experiences in a virtual, case-based diagnostic reasoning conference.
  Diagnosis (Berlin, Germany) 2021 Penner JC, Le S, Shipley LC, Murdock HM, Minter DJ, Nematollahi S
• The Reverse Halo Sign in an Immunocompromised Host.
  Journal of general internal medicine 2021 Penner JC, Dyster TG, Babik JM
• Graduating With Honors in Resilience: Creating a Whole New Doctor.
  Global advances in health and medicine 2020 Mikhaiel JP, Pollack J, Buck E, Williams M, Lott A, Penner JC, Ann Cary M
• Making Meaning Through Institutional Engagement.
  Academic medicine : journal of the Association of American Medical Colleges 2020 Dyster TG, Penner JC
• Virtual Morning Report during COVID-19: A novel model for case-based teaching conferences.
  Medical education 2020 Murdock HM, Penner JC, Le S, Nematollahi S
• Aspergillus-Pseudomonas interaction, relevant to competition in airways.
  Medical mycology 2019 Sass G, Nazik H, Penner J, Shah H, Ansari SR, Clemons KV, Groleau MC, Dietl AM, Visca P, Haas H, Déziel E, Stevens DA
• Studies of Pseudomonas aeruginosa Mutants Indicate Pyoverdine as the Central Factor in Inhibition of Aspergillus fumigatus Biofilm.
  Journal of bacteriology 2017 Sass G, Nazik H, Penner J, Shah H, Ansari SR, Clemons KV, Groleau MC, Dietl AM, Visca P, Haas H, Déziel E, Stevens DA
• Studies of Pseudomonas aeruginosa Mutants Indicate Pyoverdine as the Central Factor in Inhibition of Aspergillus fumigatus Biofilm.
  Open Forum Infectious Diseases 2017 Gabriele Sass, Hasan Nazik, John Penner, Hemi Shah, Karl V Clemons, Marie-Christine Groleau, Eric Déziel, David A Stevens
• Pf4 bacteriophage produced by Pseudomonas aeruginosa inhibits Aspergillus fumigatus metabolism via iron sequestration.
  Microbiology (Reading, England) 2016 Penner JC, Ferreira JAG, Secor PR, Sweere JM, Birukova MK, Joubert LM, Haagensen JAJ, Garcia O, Malkovskiy AV, Kaber G, Nazik H, Manasherob R, Spormann AM, Clemons KV, Stevens DA, Bollyky PL
• Erratum for Nazik et al., effects of iron chelators on the formation and development of Aspergillus fumigatus biofilm.
  Antimicrobial agents and chemotherapy 2015 Nazik H, Penner JC, Ferreira JA, Haagensen JA, Cohen K, Spormann AM, Martinez M, Chen V, Hsu JL, Clemons KV, Stevens DA
• Inhibition of Aspergillus fumigatus and Its Biofilm by Pseudomonas aeruginosa Is Dependent on the Source, Phenotype and Growth Conditions of the Bacterium.
  PloS one 2015 Ferreira JA, Penner JC, Moss RB, Haagensen JA, Clemons KV, Spormann AM, Nazik H, Cohen K, Banaei N, Carolino E, Stevens DA
• Effects of Iron Chelators on the Formation and Development of Aspergillus fumigatus Biofilm.
  Antimicrobial agents and chemotherapy 2015 Nazik H, Penner JC, Ferreira JA, Haagensen JA, Cohen K, Spormann AM, Martinez M, Chen V, Hsu JL, Clemons KV, Stevens DA
• Molecular epidemiology of Aspergillus collected from cystic fibrosis patients.
  Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society 2014 Sabino R, Ferreira JA, Moss RB, Valente J, Veríssimo C, Carolino E, Clemons KV, Everson C, Banaei N, Penner J, Stevens DA