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Erin E. Hahn, PhD, MPH

TitleResearch Scientist I
InstitutionKaiser Permanente Southern California
DepartmentDepartment of Research and Evaluation
Address100 South Los Robles Avenue
Pasadena CA 91101
ORCID ORCID Icon0000-0002-8419-2331 Additional info
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    Other Positions
    TitleAssociate Professor
    InstitutionKaiser Permanente Bernard J. Tyson School of Medicine
    DepartmentHealth Systems Science

    Collapse Overview 
    Collapse overview
    Dr. Hahn is a health services researcher. Her primary interest is quality of care in oncology, focusing on clinical guideline implementation and delivery system issues. Dr. Hahn’s work is a combination of qualitative and quantitative methods that explore variations in care, views and opinions of clinicians, and the association of patient-, clinician-, and system-level factors with health care utilization and outcomes. Her recent work focuses on overutilization issues in the delivery of post-treatment health services for breast cancer survivorship care.

    Collapse Research 
    Collapse research activities and funding
    R01CA255872     (CHAO, CHUN R.)Jul 15, 2021 - Jun 30, 2026
    Effectiveness and Mechanisms of Multilevel Implementation Strategies to Improve Provider Recommendation and Advance HPV Vaccination: a Cluster Randomized Trial
    Role: Co-Principal Investigator

    P01CA233432     (KUSHI, LAWRENCE H)Sep 15, 2020 - Jun 30, 2025
    Clinical Care Gaps and Unmet Needs in Adolescent and Young Adult (AYA) Cancers
    Role: Co-Principal Investigator

    R01CA249419     (HAHN, ERIN ELIZABETH)Jun 1, 2020 - May 31, 2025
    The EPICS (Engaging Primary care in Cancer Survivorship) study: A trial of novel models of care for cancer survivors
    Role: Principal Investigator

    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
    Newest   |   Oldest   |   Most Cited   |   Most Discussed   |   Timeline   |   Field Summary   |   Plain Text
    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Abrah?o R, Brunson A, Ruddy KJ, Li Q, Li J, Ryder MM, Chubak J, Nichols HB, Sauder CAM, Gray MF, Hahn EE, Wun T, Keegan THM. Late endocrine diseases in survivors of adolescent and young adult cancer in California: a population-based study. Br J Cancer. 2024 Feb 08. PMID: 38332179.
    2. Liu PH, Nair RG, Skinner CS, Murphy CC, Kim EJ, Ortiz C, Wang L, Hu E, Lykken JM, Levin TR, Green BB, Hahn EE, Santini N, Halm EA. Unsatisfactory Fecal Immunochemical Tests for Colorectal Cancer Screening: Prevalence, Reasons, and Subsequent Testing. Cancer Epidemiol Biomarkers Prev. 2024 Feb 06; 33(2):215-223. PMID: 37964449.
    3. Abrah?o R, Brunson A, Chubak J, Wernli KJ, Nichols HB, Chao C, Ruddy KJ, Hahn EE, Li Q, Malogolowkin MH, Sauder CAM, Kushi LH, Wun T, Keegan THM. Late venous thromboembolism in survivors of adolescent and young adult cancer: A population-based study in California. Thromb Res. 2024 Jan 15; 235:1-7. PMID: 38244373.
    4. Hahn EE, Alexander M, Stiller J, Grewe PM, Holleley CE. Hot alkaline lysis gDNA extraction from formalin-fixed archival tissues. PLoS One. 2024; 19(1):e0296491. PMID: 38165968; PMCID: PMC10760679.
    5. Hahn EE, Ritzwoller DP, Munoz-Plaza CE, Gander J, Kushi LH, McMullen C, Oshiro C, Roblin DW, Wernli KJ, Staab J. Incidence and Survival for Patients Diagnosed With Breast, Colorectal, and Lung Cancer in an Integrated System. Perm J. 2023 Sep 19; 1-7. PMID: 37724894.
    6. Rodriguez PJ, Heagerty PJ, Clark S, Khor S, Chen Y, Haupt E, Hahn EE, Shankaran V, Bansal A. Using Machine Learning to Leverage Biomarker Change and Predict Colorectal Cancer Recurrence. JCO Clin Cancer Inform. 2023 Sep; 7:e2300066. PMID: 37963310; PMCID: PMC10681492.
    7. Hahn EE, Munoz-Plaza CE, Lyons LJ, Lee JS, Pounds D, La Cava S, Brasfield FM, Durna LN, Kwan KW, Beard DB, Ferreira A, Gould MK. Barriers and facilitators to implementation and sustainment of guideline-recommended depression screening for patients with breast cancer in medical oncology: a qualitative study. Support Care Cancer. 2023 Jul 12; 31(8):461. PMID: 37436477.
      Citations:    Fields:    Translation:Humans
    8. Chen Y, Shankaran V, Hahn EE, Haupt EC, Bansal A. Underutilization or appropriate care? Assessing adjuvant chemotherapy use and survival in 3 heterogenous subpopulations with stage II/III colorectal cancer within a large integrated health system. J Manag Care Spec Pharm. 2023 Jun; 29(6):635-646. PMID: 37276035; PMCID: PMC10387960.
      Citations:    Fields:    Translation:Humans
    9. Khor S, Heagerty PJ, Basu A, Haupt EC, Lyons LJL, Hahn EE, Bansal A. Racial Disparities in the Ascertainment of Cancer Recurrence in Electronic Health Records. JCO Clin Cancer Inform. 2023 06; 7:e2300004. PMID: 37267516.
      Citations:    Fields:    Translation:Humans
    10. Khor S, Haupt EC, Hahn EE, Lyons LJL, Shankaran V, Bansal A. Racial and Ethnic Bias in Risk Prediction Models for Colorectal Cancer Recurrence When Race and Ethnicity Are Omitted as Predictors. JAMA Netw Open. 2023 Jun 01; 6(6):e2318495. PMID: 37318804; PMCID: PMC10273018.
      Citations:    Fields:    Translation:Humans
    11. Chao CR, Cannizzaro NT, Hahn EE, Tewari D, Ngo-Metzger Q, Hsu C, Shen E, Wride P, Hodeib M, Gould M, Mittman BS. A study protocol for a cluster randomized pragmatic trial for comparing strategies for implementing primary HPV testing for routine cervical cancer screening in a large health care system. Contemp Clin Trials. 2023 01; 124:106994. PMID: 36336248.
      Citations:    Fields:    Translation:HumansPHPublic HealthCTClinical Trials
    12. Chao CR, Xu L, Cannizzaro N, Bronstein D, Choi Y, Riewerts R, Mittman B, Zimmerman RK, Gilkey M, Glenn B, Shen E, Hsu C, Hahn EE. Trends in HPV vaccine administration and HPV vaccine coverage in children by race/ethnicity and socioeconomic status during the COVID-19 pandemic in an integrated health care system in California. Vaccine. 2022 11 02; 40(46):6575-6580. PMID: 36243591; PMCID: PMC9527222.
      Citations: 2     Fields:    Translation:HumansPHPublic Health
    13. Nichols HB, Wernli KJ, Chawla N, O'Meara ES, Gray MF, Green LE, Baggett CD, Casperson M, Chao C, Jones SMW, Kirchhoff AC, Kuo TM, Lee C, Malogolowkin M, Quesenberry CP, Ruddy KJ, Wun T, Zebrack B, Chubak J, Hahn EE, Keegan THM, Kushi LH. Challenges and Opportunities of Epidemiological Studies to Reduce the Burden of Cancers in Young Adults. Curr Epidemiol Rep. 2023 Sep; 10(3):115-124. PMID: 37700859; PMCID: PMC10495081.
    14. Fischer H, Hahn EE, Li BH, Munoz-Plaza CE, Luong TQ, Harrison TN, Slezak JM, Sim JJ, Mittman BS, Lee EA, Singh H, Kanter MH, Reynolds K, Danforth KN. Potentially Harmful Medication Dispenses After a Fall or Hip Fracture: A Mixed Methods Study of a Commonly Used Quality Measure. Jt Comm J Qual Patient Saf. 2022 Apr; 48(4):222-232. PMID: 35190249.
      Citations:    Fields:    Translation:Humans
    15. Hahn EE, Munoz-Plaza CE, Pounds D, Lyons LJ, Lee JS, Shen E, Hong BD, La Cava S, Brasfield FM, Durna LN, Kwan KW, Beard DB, Ferreira A, Padmanabhan A, Gould MK. Effect of a Community-Based Medical Oncology Depression Screening Program on Behavioral Health Referrals Among Patients With Breast Cancer: A Randomized Clinical Trial. JAMA. 2022 01 04; 327(1):41-49. PMID: 34982119; PMCID: PMC8728610.
      Citations: 4     Fields:    Translation:HumansPHPublic Health
    16. Harrison TN, Reynolds K, Hahn EE, Munoz-Plaza CE, Yi DK, Fischer H, Luong TQ, Sim JJ, Brettler J, Handler J, Mittman BS, Singh H, Kanter MH, Danforth KN. Laboratory monitoring to reduce adverse drug-related events: a mixed methods study. J Manag Care Spec Pharm. 2022 Jan; 28(1):16-25. PMID: 34949121.
      Citations:    Fields:    Translation:Humans
    17. Mead OL, Hahn EE, Adamska MA. Hybrid Genome Assemblies of Marine Bacteria Isolated from the Sponge Sycon capricorn. Microbiol Resour Announc. 2021 Oct 28; 10(43):e0085821. PMID: 34709051; PMCID: PMC8552773.
    18. Hahn EE, Munoz-Plaza C, Altman DE, Hsu C, Cannizzaro NT, Ngo-Metzger Q, Wride P, Gould MK, Mittman BS, Hodeib M, Tewari KS, Ajamian LH, Eskander RN, Tewari D, Chao CR. De-implementation and substitution of clinical care processes: stakeholder perspectives on the transition to primary human papillomavirus (HPV) testing for cervical cancer screening. Implement Sci Commun. 2021 Sep 23; 2(1):108. PMID: 34556189; PMCID: PMC8461958.
      Citations: 2     
    19. Hahn EE, Alexander MR, Grealy A, Stiller J, Gardiner DM, Holleley CE. Unlocking inaccessible historical genomes preserved in formalin. Mol Ecol Resour. 2021 Sep 22. PMID: 34549888.
      Citations: 3     Fields:    
    20. Kerlavage AR, Kirchhoff AC, Guidry Auvil JM, Sharpless NE, Davis KL, Reilly K, Reaman G, Penberthy L, Deapen D, Hwang A, Durbin EB, Gallotto SL, Aplenc R, Volchenboum SL, Heath AP, Aronow BJ, Zhang J, Vaske O, Alonzo TA, Nathan PC, Poynter JN, Armstrong G, Hahn EE, Wernli KJ, Greene C, DiGiovanna J, Resnick AC, Shalley ER, Nadaf S, Kibbe WA. Cancer Informatics for Cancer Centers: Scientific Drivers for Informatics, Data Science, and Care in Pediatric, Adolescent, and Young Adult Cancer. JCO Clin Cancer Inform. 2021 08; 5:881-896. PMID: 34428097.
      Citations: 1     Fields:    Translation:HumansCellsPHPublic Health
    21. Miller MJ, Xu L, Qin J, Hahn EE, Ngo-Metzger Q, Mittman B, Tewari D, Hodeib M, Wride P, Saraiya M, Chao CR. Impact of COVID-19 on Cervical Cancer Screening Rates Among Women Aged 21-65 Years in a Large Integrated Health Care System - Southern California, January 1-September 30, 2019, and January 1-September 30, 2020. MMWR Morb Mortal Wkly Rep. 2021 Jan 29; 70(4):109-113. PMID: 33507893; PMCID: PMC7842810.
      Citations: 53     Fields:    Translation:HumansPHPublic Health
    22. Hahn EE, Baecker A, Shen E, Haupt EC, Wakach W, Ahuja A, Imley TM, Gould MK, Kanter M. A Patient Portal-Based Commitment Device to Improve Adherence with Screening for Colorectal Cancer: a Retrospective Observational Study. J Gen Intern Med. 2021 04; 36(4):952-960. PMID: 33474640; PMCID: PMC8042087.
      Citations: 3     Fields:    Translation:HumansPHPublic Health
    23. Hahn EE, Munoz-Plaza CE, Lee EA, Luong TQ, Mittman BS, Kanter MH, Singh H, Danforth KN. Patient and Physician Perspectives of Deprescribing Potentially Inappropriate Medications in Older Adults with a History of Falls: a Qualitative Study. J Gen Intern Med. 2021 Jan 19. PMID: 33469744.
      Citations: 4     Fields:    Translation:Humans
    24. Leach CR, Alfano CM, Potts J, Gallicchio L, Yabroff KR, Oeffinger KC, Hahn EE, Shulman LN, Hudson SV. Personalized Cancer Follow-Up Care Pathways: A Delphi Consensus of Research Priorities. J Natl Cancer Inst. 2020 12 14; 112(12):1183-1189. PMID: 32333765; PMCID: PMC7735765.
      Citations: 3     Fields:    Translation:Humans
    25. Tanenbaum HC, Xu L, Hahn EE, Wolfson J, Bhatia S, Cannavale K, Cooper R, Chao C. Preventive health service use among survivors of adolescent and young adult cancer. Prev Med Rep. 2020 Dec; 20:101278. PMID: 33384914; PMCID: PMC7770961.
      Citations: 2     
    26. Tanenbaum HC, Wolfson J, Xu L, Hahn EE, Bhatia S, Cannavale K, Cooper R, Chao C. Adherence to cardiomyopathy screening guidelines among adolescent and young adult cancer survivors exposed to chest radiation and/or anthracyclines. J Cancer Surviv. 2020 Nov 10. PMID: 33170480; PMCID: PMC8107185.
      Citations:    Fields:    Translation:Humans
    27. Gould MK, Sharp AL, Nguyen HQ, Hahn EE, Mittman BS, Shen E, Alem AC, Kanter MH. Embedded Research in the Learning Healthcare System: Ongoing Challenges and Recommendations for Researchers, Clinicians, and Health System Leaders. J Gen Intern Med. 2020 12; 35(12):3675-3680. PMID: 32472492; PMCID: PMC7728937.
      Citations: 10     Fields:    Translation:Humans
    28. Hahn EE, Grealy A, Alexander M, Holleley CE. Museum Epigenomics: Charting the Future by Unlocking the Past. Trends Ecol Evol. 2020 04; 35(4):295-300. PMID: 31955919.
      Citations: 2     Fields:    
    29. Pergolotti M, Alfano CM, Cernich AN, Yabroff KR, Manning PR, de Moor JS, Hahn EE, Cheville AL, Mohile SG. A health services research agenda to fully integrate cancer rehabilitation into oncology care. Cancer. 2019 Nov 15; 125(22):3908-3916. PMID: 31390063.
      Citations: 13     Fields:    Translation:Humans
    30. Danforth KN, Hahn EE, Slezak JM, Chen LH, Li BH, Munoz-Plaza CE, Luong TQ, Harrison TN, Mittman BS, Sim JJ, Singh H, Kanter MH. Follow-up of Abnormal Estimated GFR Results Within a Large Integrated Health Care Delivery System: A Mixed-Methods Study. Am J Kidney Dis. 2019 11; 74(5):589-600. PMID: 31324445.
      Citations: 4     Fields:    Translation:Humans
    31. Hahn EE, Wu YL, Munoz-Plaza CE, Garcia Delgadillo J, Cooper RM, Chao CR. Use of recommended posttreatment services for adolescent and young adult survivors of Hodgkin lymphoma. Cancer. 2019 May 01; 125(9):1558-1567. PMID: 30620388.
      Citations: 8     Fields:    Translation:Humans
    32. Hahn EE, Gould MK. Lung Cancer Screening and Smoking Cessation: Never Too Early or Too Late. J Natl Cancer Inst. 2018 Nov 01; 110(11):1157-1158. PMID: 29788445.
      Citations: 4     Fields:    Translation:Humans
    33. Hahn EE, Munoz-Plaza CE, Schottinger JE, Brasfield FM, Gould MK, Parry C. Developing innovative models of care for cancer survivors: use of implementation science to guide evaluation of appropriateness and feasibility. Support Care Cancer. 2019 May; 27(5):1737-1745. PMID: 30143893.
      Citations: 2     Fields:    Translation:Humans
    34. Birken SA, Urquhart R, Munoz-Plaza C, Zizzi AR, Haines E, Stover A, Mayer DK, Hahn EE. Survivorship care plans: are randomized controlled trials assessing outcomes that are relevant to stakeholders? J Cancer Surviv. 2018 Aug; 12(4):495-508. PMID: 29572602.
      Citations: 14     Fields:    Translation:Humans
    35. Hahn EE, Gould MK. Drivers of Low-Value Care. JAMA Intern Med. 2018 03 01; 178(3):433. PMID: 29507980.
      Citations: 2     Fields:    
    36. Hahn EE, Gould MK, Munoz-Plaza CE, Lee JS, Parry C, Shen E. Understanding Comorbidity Profiles and Their Effect on Treatment and Survival in Patients With Colorectal Cancer. J Natl Compr Canc Netw. 2018 01; 16(1):23-34. PMID: 29295878.
      Citations: 9     Fields:    Translation:Humans
    37. Xie F, Lee J, Munoz-Plaza CE, Hahn EE, Chen W. Application of Text Information Extraction System for Real-Time Cancer Case Identification in an Integrated Healthcare Organization. J Pathol Inform. 2017; 8:48. PMID: 29416911.
      Citations: 11     
    38. Gould MK, Munoz-Plaza CE, Hahn EE, Lee JS, Parry C, Shen E. Comorbidity Profiles and Their Effect on Treatment Selection and Survival among Patients with Lung Cancer. Ann Am Thorac Soc. 2017 Oct; 14(10):1571-1580. PMID: 28541748.
      Citations: 24     Fields:    Translation:Humans
    39. Kanani N, Hahn E, Gould M, Brunisholz K, Savitz L, Holve E. AcademyHealth's Delivery System Science Fellowship: Training Embedded Researchers to Design, Implement, and Evaluate New Models of Care. J Hosp Med. 2017 07; 12(7):570-574. PMID: 28699948.
      Citations: 6     Fields:    Translation:Humans
    40. Hahn EE, Munoz-Plaza C, Wang J, Garcia Delgadillo J, Schottinger JE, Mittman BS, Gould MK. Anxiety, Culture, and Expectations: Oncologist-Perceived Factors Associated With Use of Nonrecommended Serum Tumor Marker Tests for Surveillance of Early-Stage Breast Cancer. J Oncol Pract. 2017 01; 13(1):e77-e90. PMID: 27845868.
      Citations: 5     Fields:    Translation:HumansPHPublic Health
    41. Selove R, Birken SA, Skolarus TA, Hahn EE, Sales A, Proctor EK. Using Implementation Science to Examine the Impact of Cancer Survivorship Care Plans. J Clin Oncol. 2016 11 10; 34(32):3834-3837. PMID: 27621409.
      Citations: 8     Fields:    Translation:Humans
    42. Hahn EE, Gould MK. Surveillance Imaging in Patients with Resected Non-Small Cell Lung Cancer: Too Much, Not Enough, or Just Right? Ann Am Thorac Soc. 2016 09; 13(9):1446-7. PMID: 27627471.
      Citations: 1     Fields:    Translation:Humans
    43. Munoz-Plaza CE, Parry C, Hahn EE, Tang T, Nguyen HQ, Gould MK, Kanter MH, Sharp AL. Integrating qualitative research methods into care improvement efforts within a learning health system: addressing antibiotic overuse. Health Res Policy Syst. 2016 Aug 15; 14(1):63. PMID: 27527079.
      Citations: 14     Fields:    Translation:Humans
    44. Ganz PA, Hahn EE, Petersen L, Melisko ME, Pierce JP, Von Friederichs-Fitzwater M, Lane KT, Hiatt RA. Quality of Posttreatment Care Among Breast Cancer Survivors in the University of California Athena Breast Health Network (Athena). Clin Breast Cancer. 2016 10; 16(5):356-363. PMID: 27397694.
      Citations: 1     Fields:    Translation:Humans
    45. Hahn EE, Tang T, Lee JS, Munoz-Plaza CE, Shen E, Rowley B, Maeda JL, Mosen DM, Ruckdeschel JC, Gould MK. Use of posttreatment imaging and biomarkers in survivors of early-stage breast cancer: Inappropriate surveillance or necessary care? Cancer. 2016 Mar 15; 122(6):908-16. PMID: 26650715.
      Citations: 16     Fields:    Translation:HumansPHPublic Health
    46. Hahn EE, Tang T, Lee JS, Munoz-Plaza C, Adesina JO, Shen E, Rowley B, Maeda JL, Mosen DM, Ruckdeschel JC, Gould MK. Use of imaging for staging of early-stage breast cancer in two integrated health care systems: adherence with a choosing wisely recommendation. J Oncol Pract. 2015 May; 11(3):e320-8. PMID: 25901056.
      Citations: 5     Fields:    Translation:Humans
    47. Hahn EE, Hays RD, Kahn KL, Litwin MS, Ganz PA. Post-traumatic stress symptoms in cancer survivors: relationship to the impact of cancer scale and other associated risk factors. Psychooncology. 2015 Jun; 24(6):643-52. PMID: 25059888.
      Citations: 22     Fields:    Translation:Humans
    48. Hahn EE, Hays RD, Kahn KL, Litwin MS, Ganz PA. Use of imaging and biomarker tests for posttreatment care of early-stage breast cancer survivors. Cancer. 2013 Dec 15; 119(24):4316-24. PMID: 24105101.
      Citations: 25     Fields:    Translation:HumansPHPublic Health
    49. Hahn EE, Ganz PA, Melisko ME, Pierce JP, von Friederichs-Fitzwater M, Lane KT, Hiatt RA. Provider perceptions and expectations of breast cancer posttreatment care: a University of California Athena Breast Health Network project. J Cancer Surviv. 2013 Sep; 7(3):323-30. PMID: 23494652.
      Citations: 8     Fields:    Translation:Humans
    50. Alfano CM, Ganz PA, Rowland JH, Hahn EE. Cancer survivorship and cancer rehabilitation: revitalizing the link. J Clin Oncol. 2012 Mar 20; 30(9):904-6. PMID: 22355063.
      Citations: 41     Fields:    Translation:Humans
    51. Shalom MM, Hahn EE, Casillas J, Ganz PA. Do survivorship care plans make a difference? A primary care provider perspective. J Oncol Pract. 2011 Sep; 7(5):314-8. PMID: 22211129.
      Citations: 41     Fields:    
    52. Hahn EE, Ganz PA. Survivorship programs and care plans in practice: variations on a theme. J Oncol Pract. 2011 Mar; 7(2):70-5. PMID: 21731511.
      Citations: 31     Fields:    
    53. Ganz PA, Casillas J, Hahn EE. Ensuring quality care for cancer survivors: implementing the survivorship care plan. Semin Oncol Nurs. 2008 Aug; 24(3):208-17. PMID: 18687267.
      Citations: 59     Fields:    Translation:Humans
    54. Ganz PA, Hahn EE. Implementing a survivorship care plan for patients with breast cancer. J Clin Oncol. 2008 Feb 10; 26(5):759-67. PMID: 18258984.
      Citations: 105     Fields:    Translation:Humans
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