Nathanael Fillmore, PhD
Adjunct Instructor, Medicine

Biography
I lead a group at the VA Boston Healthcare System and Harvard Medical School that uses VA clinical, genomic, and imaging data, together with machine learning and statistical methods, in research to improve patient care. We are also working on software and methodological improvements to support these efforts.
Education
- University of Wisconsin Madison, PhD
- University of Wisconsin Madison, MS
- Carleton College, BA
Publications
- Published on 4/8/2025
Lee MH, La J, Brophy MT, Do NV, Edwards CV, DuMontier C, Hobbs GS, Fillmore NR. Psychiatric and substance use disorders predict poor outcomes in older veterans with acute myeloid leukemia. Blood Adv. 2025 Apr 08; 9(7):1555-1558. PMID: 39715463.
Read at: PubMed - Published on 4/1/2025
Larsen JR, Zheng C, La J, Wu JT, Kelley M, Gaziano JM, Brophy M, Do NV, Kim DH, Driver JA, DuMontier C, Fillmore NR. Multimorbidity and Its Impact in Older U.S. Veterans Newly Treated for Advanced Non-Small Cell Lung Cancer. Ann Am Thorac Soc. 2025 Apr; 22(4):598-608. PMID: 39680869.
Read at: PubMed - Published on 2/3/2025
Kim RB, Ryu JH, Guffey D, Zhou E, Ranjan M, Ma S, La J, Fillmore NR, Li A. Incidence and risk of arterial thromboembolism in cancer patients from a safety-net healthcare system. J Thromb Haemost. 2025 Feb 03. PMID: 39909143.
Read at: PubMed - Published on 1/30/2025
Swinnerton K, Fillmore NR, Oboho I, Grubber J, Brophy M, Do NV, Monach PA, Branch-Elliman W. Pulmonary aspergillosis in US Veterans with COVID-19: a nationwide, retrospective cohort study. Antimicrob Steward Healthc Epidemiol. 2025; 5(1):e28. PMID: 39911504.
Read at: PubMed - Published on 1/24/2025
Wheless L, Mosley D, Dochtermann D, Pyarajan S, Gonzalez K, Weiss R, Maas K, Zhang S, Yao L, Xu Y, Madden C, Ike J, Smith IT, Grossarth S, Wilson O, Hung A, Fillmore NR, Brown K, Landi MT, Hartman RI. The impact of imprecise case definitions in electronic health record research: a melanoma case-study from the Million Veteran Program. Arch Dermatol Res. 2025 Jan 24; 317(1):308. PMID: 39853431.
Read at: PubMed - Published on 1/14/2025
Ferri GM, Yildirim C, Do NV, Brophy M, Park JS, Munshi NC, Fillmore NR, Edwards CV. Lymphopenia predicts poor outcomes in newly diagnosed multiple myeloma. Blood Adv. 2025 Jan 14; 9(1):78-88. PMID: 39471425.
Read at: PubMed - Published on 1/1/2025
Williams CT, Yildirim C, Dharne M, Abdallah MM, Driver JA, Munshi NC, Fillmore NR, DuMontier C. Ceiling Effect of International Myeloma Working Group Frailty Score in Real-World Population of Older Adults With Cancer. Hematol Oncol. 2025 Jan; 43(1):e70016. PMID: 39673104.
Read at: PubMed - Published on 12/30/2024
Wu JT, Corrigan J, Su C, Dumontier C, La J, Khan A, Arya S, Harris AHS, Backhus L, Das M, Do NV, Brophy MT, Han SS, Kelley M, Fillmore NR. Correction: The performance status gap in immunotherapy for frail patients with advanced non-small cell lung cancer. Cancer Immunol Immunother. 2024 Dec 30; 74(1):34. PMID: 39739108.
Read at: PubMed - Published on 12/3/2024
Dulberger KN, La J, Li A, Lotfollahzadeh S, Jose A, Do NV, Brophy MT, Gaziano JM, Ravid K, Chitalia VC, Fillmore NR. External validation of a novel cancer-associated venous thromboembolism risk assessment score in a safety-net hospital. Res Pract Thromb Haemost. 2025 Jan; 9(1):102650. PMID: 39839661.
Read at: PubMed - Published on 9/26/2024
Ma S, Jiang JY, Kim RB, Chiang E, Theng Tiong JW, Ryu J, Guffey D, Bandyo R, Dowst H, Swinnerton KN, Fillmore NR, La J, Li A. Circulating tumor DNA predicts venous thromboembolism in patients with cancers. J Thromb Haemost. 2025 Jan; 23(1):139-148. PMID: 39341370.
Read at: PubMed
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