Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Bone Marrow Transplant Group Bone Marrow Transplant Program Cancer Care at Mayo Clinic Critical Care Hematology Oncology (Medical) Pediatric Hematology/Oncology Pediatric Transplant Services Transplant Center Doctors who perform this procedure Edit search filters close Narrow your search By location Rochester, MN By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F Find a doctor whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H Find a doctor whose last name begins with the letter I I active Find a doctor whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M Find a doctor whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y Find a doctor whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: J Patrick B. Johnston, M.D., Ph.D. Hematologist Rochester, MN Areas of focus: Bone marrow transplant, CAR-T cell therapy, Hodgkin lymphoma, Lymphoma, B-cell lymphoma, Burkitt lymphoma, Follicular l...ymphoma, Peripheral T-cell lymphoma Show more areas of focus for Patrick B. Johnston, M.D., Ph.D. Avni Y. Joshi, M.D., M.S. Allergist-Immunologist Pediatric Infectious Disease Specialist Pediatric Allergist-Immunologist Rochester, MN Areas of focus: Bone marrow transplant, Primary immunodeficiency, Immune deficiencies ResearchMayo Clinic scientists are actively studying ways to improve bone marrow transplant outcomes. Areas of research include: Expanding the use of haploidentical bone marrow transplant. Finding new ways to use bone marrow transplant, including pediatric hemoglobinopathies and inherited metabolic diseases. Improving quality of life for people who have had bone marrow transplants. Preventing and managing graft-versus-host disease (GVHD). Understanding chronic GVHD. Learn more about research in the Bone Marrow Transplant Program. Cancer research is conducted in coordination with the Mayo Clinic Comprehensive Cancer Center. The Cancer Center receives funding from the National Cancer Institute and is designated as a comprehensive cancer center — recognition for an institution's scientific excellence and multidisciplinary resources focused on cancer prevention, diagnosis and treatment. PublicationsSee a list of publications about bone marrow transplant by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine. Research Profiles Edit search filters close Narrow your search By location Arizona Florida Minnesota View all View all physicians • Arizona Fonseca, Rafael M.D. Arizona By Mayo Clinic Staff Bone marrow transplant care at Mayo Clinic Request an appointment AboutCare at Mayo Clinic Aug. 21, 2026 PrintShow references AskMayoExpert. Hematopoietic stem cell transplant. Mayo Clinic; 2026. Hoffman R, et al. Indications, outcomes, and donor selection for allogeneic hematopoietic cell transplantation for hematologic malignancies in adults. In: Hematology: Basic Principles and Practice. 8th ed. Elsevier; 2023. https://www.clinicalkey.com. Accessed July 20, 2026. Stem cell transplants in cancer treatment. National Cancer Institute. https://www.cancer.gov/about-cancer/treatment/types/stem-cell-transplant. Accessed July 20, 2026. Blood cancers and diseases treated by transplants. National Marrow Donor Program. https://www.nmdp.org/patients/understanding-transplant/diseases-treated-by-transplant. Accessed July 20, 2026. AskMayoExpert. Cutaneous graft-versus-host disease. Mayo Clinic; 2026. AskMayoExpert. Platelet transfusion. Mayo Clinic; 2026. Blood and marrow stem cell transplantation. Blood Cancer United. https://bloodcancerunited.org/resources/educational-resources/publications/booklet/blood-and-marrow-stem-cell-transplantation-0 Accessed July 20, 2026. Chao NJ. Survival, quality-of-life, and late complications after hematopoietic cell transplantation in adults. https://www.uptodate.com/contents/search. Accessed July 23, 2026. Treatments for blood disorders. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health/blood-bone-marrow-treatments Accessed July 24, 2026. Casirati A, et al. The European Society for Blood and Marrow Transplantation (EBMT) roadmap and perspectives to improve nutritional care in patients undergoing hematopoietic stem cell transplantation on behalf of the Cellular Therapy and Immunobiology Working Party (CTIWP) and the Nurses Group (NG) of the EBMT. Bone Marrow Transplantation. 2023; doi:10.1038/s41409-023-02018-z. Blood and marrow stem cell transplantation guide. Blood Cancer United. https://bloodcancerunited.org/resources/educational-resources/publications. Accessed July 24, 2026. Donating blood stem cells for stem cell transplants. National Cancer Institute. https://www.cancer.gov/about-cancer/treatment/types/stem-cell-transplant/donating-blood-stem-cells. Accessed July 23, 2026. Clinical sites. Primary Immune Deficiency Treatment Consortium. https://pidtc.rarediseasesnetwork.org/clinical-sites. Accessed July 24, 2026. Full membership institutions. Pediatric Transplantation and Cellular Therapy Consortium. https://www.theptctc.org/full-membership-insitutions. Accessed July 24, 2026. Find a participating organization. ECOG-ACRIN Cancer Research Group. https://ecog-acrin.org/participating-institutions/. Accessed July 24, 2026. Mills SD, et al. Bone-marrow transplant in an identical twin. JAMA. 1964; doi:10.1001/jama.1964.03060380005001. Rashidi A, et al. Outcomes of haploidentical vs matched sibling transplantation for acute myeloid leukemia in first complete remission. Blood Advances. 2019; doi:10.1182/bloodadvances.2019000050. Ahmed S, et al. Lower graft-versus-host disease and relapse risk in post-transplant cyclophosphamide-based haploidentical versus matched sibling donor reduced-intensity conditioning transplant for Hodgkin Lymphoma. Biology of Blood and Marrow Transplantation. 2019; doi:10.1016/j.bbmt.2019.05.025. Jain T, et al. Choosing a reduced-intensity conditioning regimen for allogeneic stem cell transplantation, fludarabine/busulfan versus fludarabine melphalan: A systematic review and meta-analysis. Biology of Blood and Marrow Transplantation. 2019; doi:10.1016/j.bbmt.2018.11.016. Chen YB, et al. Plerixafor alone for the mobilization and transplantation of HLA-matched sibling donor hematopoietic stem cells. Blood Advances. 2019; doi:10.1182/bloodadvances.2018027599. Ballen KK, et al. Hospital length of stay in the first 100 days after allogeneic hematopoietic cell transplantation for acute leukemia in remission: Comparison among alternative graft sources. Biology of Blood and Marrow Transplantation. 2014; doi:10.1016/j.bbmt.2014.07.021. Sweeney SK, et al. Tracking embryonic hematopoietic stem cells to the bone marrow: Nanoparticle options to evaluate transplantation efficiency. Stem Cell Research & Therapy. 2018; doi:10.1186/s13287-018-0944-8. Kumar A, et al. Antithymocyte globulin for graft-versus-host disease prophylaxis: An updated systematic review and meta-analysis. Bone Marrow Transplantation. 2019; doi:10.1038/s41409-018-0393-0. Graff TM, et al. Safety of outpatient autologous hematopoietic cell transplantation for multiple myeloma and lymphoma. Bone Marrow Transplant. 2015; doi:10.1038/bmt.2015.46. FACT accredited organizations. Foundation for the Accreditation of Cellular Therapy (FACT). https://accredited.factglobal.org/?_sf_s=Mayo%20Clinic. Accessed July 24, 2026. National Marrow Donor Program. https://www.nmdp.org/. Accessed July 24, 2026. Participating centers. Center for International Blood and Marrow Transplant Research. https://cibmtr.org/CIBMTR/About/Our-Impact/Our-Centers. Accessed July 24, 2026. COG member institutions. Children's Oncology Group. https://childrensoncologygroup.org/patients-families/member-institutions/. Accessed July 24, 2026. Harper K, et al. Best practice considerations in nutritional care for adult patients undergoing hematopoietic cell transplantation. Transplantation and Cellular Therapy. 2026; doi:10.1016/j.jtct.2025.11.021. Medical review (expert opinion). Mayo Clinic. Aug. 9, 2026. 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