Harold Collard, MD

Director of the Interstitial Lung Disease Program

Dr. Harold R. Collard is an associate professor of medicine in the Division of Pulmonary and Critical Care Medicine and the director of the Interstitial Lung Disease Program at UCSF Medical Center. His primary interest is in the management of patients with interstitial lung disease, including how best to diagnose and treat interstitial lung disease and how the condition impacts a patient's quality of life and survival.

Collard earned a medical degree at Duke University. He completed an internship, residency and chief residency in internal medicine at UCSF as well as a fellowship in pulmonary and critical care medicine at the University of Colorado. Prior to joining UCSF, Collard was a member of the Interstitial Lung Disease Program at the National Jewish Medical and Research Center in Denver.


ILD Program
400 Parnassus Ave., Fifth Floor
San Francisco, CA 94143
Phone: (415) 353-2577
Fax: (415) 353-8944

Pulmonary Practice at Parnassus
400 Parnassus Ave., Fifth Floor
San Francisco, CA 94143-0359
Phone: (415) 353-2961
Fax: (415) 353-2568

Hours: Monday to Friday
8 a.m. – 5 p.m.

Conditions & Treatments

Board Certification

Pulmonary Disease, American Board of Internal Medicine

Academic Title

Associate Professor

More about Harold Collard


Duke University School of Medicine 1997


UCSF Medical Center, Internal Medicine 2000


University of Colorado Medical Center 2004

Selected Research and Publications

  1. Morisset J, Johannson KA, Jones KD, Wolters PJ, Collard HR, Walsh SLF, Ley B. Identification of Diagnostic Criteria for Chronic Hypersensitivity Pneumonitis: An International Modified Delphi Survey. Am J Respir Crit Care Med. 2017 Nov 27.
  2. Ley B, Swigris J, Day BM, Stauffer JL, Raimundo K, Chou W, Collard HR. Pirfenidone Reduces Respiratory-related Hospitalizations in Idiopathic Pulmonary Fibrosis. Am J Respir Crit Care Med. 2017 Sep 15; 196(6):756-761.
  3. Oldham JM, Collard HR. Comorbid Conditions in Idiopathic Pulmonary Fibrosis: Recognition and Management. Front Med (Lausanne). 2017; 4:123.
  4. Johannson KA, Vittinghoff E, Morisset J, Lee JS, Balmes JR, Collard HR. Home monitoring improves endpoint efficiency in idiopathic pulmonary fibrosis. Eur Respir J. 2017 Jul; 50(1).
  5. Farrand E, Shah R, Collard H. The Hospitalized Patient with Interstitial Lung Disease: A Hospitalist Primer. J Hosp Med. 2017 Jul; 12(7):580-584.
  6. Cottin V, Hansell DM, Sverzellati N, Weycker D, Antoniou KM, Atwood M, Oster G, Kirchgaessler KU, Collard HR, Wells AU. Effect of Emphysema Extent on Serial Lung Function in Patients with Idiopathic Pulmonary Fibrosis. Am J Respir Crit Care Med. 2017 Jun 28.
  7. Morisset J, Vittinghoff E, Elicker BM, Hu X, Le S, Ryu JH, Jones KD, Haemel A, Golden JA, Boin F, Ley B, Wolters PJ, King TE, Collard HR, Lee JS. Mortality Risk Prediction in Scleroderma-Related Interstitial Lung Disease: The SADL Model. Chest. 2017 Jun 16.
  8. Collard HR, Richeldi L, Kim DS, Taniguchi H, Tschoepe I, Luisetti M, Roman J, Tino G, Schlenker-Herceg R, Hallmann C, du Bois RM. Acute exacerbations in the INPULSIS trials of nintedanib in idiopathic pulmonary fibrosis. Eur Respir J. 2017 May; 49(5).
  9. Collard HR. Giants in Chest Medicine: Talmadge E. King Jr, MD, FCCP. Chest. 2017 May; 151(5):960-961.
  10. Morisset J, Vittinghoff E, Lee BY, Tonelli R, Hu X, Elicker BM, Ryu JH, Jones KD, Cerri S, Manfredi A, Sebastiani M, Gross AJ, Ley B, Wolters PJ, King TE, Kim DS, Collard HR, Lee JS. The performance of the GAP model in patients with rheumatoid arthritis associated interstitial lung disease. Respir Med. 2017 Jun; 127:51-56.
  11. Ryerson CJ, Corte TJ, Lee JS, Richeldi L, Walsh SLF, Myers JL, Behr J, Cottin V, Danoff SK, Flaherty KR, Lederer DJ, Lynch DA, Martinez FJ, Raghu G, Travis WD, Udwadia Z, Wells AU, Collard HR. A Standardized Diagnostic Ontology for Fibrotic Interstitial Lung Disease: An International Working Group Perspective. Am J Respir Crit Care Med. 2017 Apr 17.
  12. Natalini JG, Swigris JJ, Morisset J, Elicker BM, Jones KD, Fischer A, Collard HR, Lee JS. Understanding the determinants of health-related quality of life in rheumatoid arthritis-associated interstitial lung disease. Respir Med. 2017 Jun; 127:1-6.
  13. Jia G, Chandriani S, Abbas AR, DePianto DJ, N'Diaye EN, Yaylaoglu MB, Moore HM, Peng I, DeVoss J, Collard HR, Wolters PJ, Egen JG, Arron JR. CXCL14 is a candidate biomarker for Hedgehog signalling in idiopathic pulmonary fibrosis. Thorax. 2017 Sep; 72(9):780-787.
  14. Collard HR. Improving Survival in Idiopathic Pulmonary Fibrosis: The Race Has Just Begun. Chest. 2017 Mar; 151(3):527-528.
  15. Wang P, Jones KD, Urisman A, Elicker BM, Urbania T, Johannson KA, Assayag D, Lee J, Wolters PJ, Collard HR, Koth LL. Pathologic Findings and Prognosis in a Large Prospective Cohort of Chronic Hypersensitivity Pneumonitis. Chest. 2017 Sep; 152(3):502-509.
  16. Corte TJ, Ryerson CJ, Collard HR. Reply: Acute Exacerbation of Idiopathic Pulmonary Fibrosis. Am J Respir Crit Care Med. 2017 Feb 15; 195(4):542-543.
  17. Ryerson CJ, Corte TJ, Martinez FJ, Collard HR. Reply: The New Idiopathic Pulmonary Fibrosis Acute Exacerbations Document: One Step Ahead but Still Suspended in the Air. Am J Respir Crit Care Med. 2017 Jan 15; 195(2):269.
  18. Brownell R, Moua T, Henry TS, Elicker BM, White D, Vittinghoff E, Jones KD, Urisman A, Aravena C, Johannson KA, Golden JA, King TE, Wolters PJ, Collard HR, Ley B. The use of pretest probability increases the value of high-resolution CT in diagnosing usual interstitial pneumonia. Thorax. 2017 May; 72(5):424-429.
  19. Raghu G, Brown KK, Collard HR, Cottin V, Gibson KF, Kaner RJ, Lederer DJ, Martinez FJ, Noble PW, Song JW, Wells AU, Whelan TP, Wuyts W, Moreau E, Patterson SD, Smith V, Bayly S, Chien JW, Gong Q, Zhang JJ, O'Riordan TG. Efficacy of simtuzumab versus placebo in patients with idiopathic pulmonary fibrosis: a randomised, double-blind, controlled, phase 2 trial. Lancet Respir Med. 2017 Jan; 5(1):22-32.
  20. Martinez FJ, Chisholm A, Collard HR, Flaherty KR, Myers J, Raghu G, Walsh SL, White ES, Richeldi L. The diagnosis of idiopathic pulmonary fibrosis: current and future approaches. Lancet Respir Med. 2017 Jan; 5(1):61-71.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.