Dr. Halbur joined Ironwood Cancer & Research Centers in 2005, following his residency in Internal Medicine and fellowship in Hematology and Oncology at the University of California at Irvine. He earned his medical degree at Loyola University of Chicago, Stritch School of Medicine. Dr. Halbur has been active in cancer research and has presented his results at the American Society of Hematology Annual Meeting. He has also been involved in clinical trial development. Dr. Halbur lives in the East Valley and enjoys spending time with his wife and two daughters. His hobbies include playing basketball, tennis, and golf and cheering on the Suns. He is board certified in Internal Medicine, Hematology and Medical Oncology.Supportive Cancer Care You Can Trust You can find that team at Ironwood Cancer & Research Centers. With community-based centers strategically located throughout the Metro Phoenix area, Ironwood offers advanced therapies and a multi-disciplinary approach usually associated with large academic centers – but with a personalized touch recognizing the individual needs of the patient.Studies have shown the importance of a multi-disciplinary approach in effectively treating cancer. We spare you time and worry simply by having all the doctors, therapists, and resources you need in one convenient location, eliminating the delays and miscommunication. These collaborative efforts ensure the highest standards of care. Because Ironwood is actively involved in cutting-edge research, you can also benefit from promising new treatments through participation in clinical trials. We evaluate you and develop a personalized treatment plan specifically for you to insure the best possible outcome. Dr. Halbur is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Familial Colorectal Cancer, Adult Soft Tissue Sarcoma, Clear Cell Sarcoma, and WT1-Related Wilms Tumor Syndromes.

I am an Arizona native and enjoy swimming and the outdoors, as well as spending time with my wife and children. I also have a special interest in improving the care of cancer patients in sub-Saharan Africa. Dr. Ulrickson is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Non-Hodgkin Lymphoma, Acute Myeloid Leukemia (AML), Acute Myeloblastic Leukemia without Maturation, Bone Marrow Transplant, and Bone Marrow Aspiration.

Abhijeet Kumar is an Oncologist in Tucson, Arizona. Dr. Kumar is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Non-Hodgkin Lymphoma, B-Cell Lymphoma, Mantle Cell Lymphoma (MCL), Gallbladder Removal, and Bone Marrow Transplant. Dr. Kumar is currently accepting new patients.

Dr. Kalmadi joined Ironwood Cancer and Research Centers in 2008 and serves as Chief Medical Officer.  After finishing his medical schooling in India, Dr. Sujith Kalmadi completed his residency training and fellowship at the Cleveland Clinic in Cleveland, Ohio. He then served as academic clinical faculty at the Cleveland Clinic School of Medicine (Lerner School) in Cleveland, Ohio and subsequently at Baylor College of Medicine in Houston, Texas. During his tenure at these prestigious institutions, he pioneered several novel clinical research trials which have been lauded at national scientific meetings and published in peer reviewed journals. His areas of clinical and research interests include several solid tumors and hematological disorders. He currently resides in Chandler with his wife and three children, and enjoys tennis, chess and racquetball during his spare time. He is board certified in Internal Medicine, Hematology and Medical Oncology. Dr. Kalmadi is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Lung Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Severe Congenital Neutropenia.

I enjoy reading, visiting with my grandkids, fishing, watching sports, and paying attention to my loving wife. Dr. Stanek is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Myelodysplastic Syndrome (MDS), Gastric Lymphoma, Non-Hodgkin Lymphoma, Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration.

I enjoy hiking, desert gardening, travel, classical music and collecting European train models. Dr. Klueppelberg is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Marginal Zone Lymphoma (MZL), Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), and Richter Syndrome.

Ryan Robetorye is a Hematologist in Phoenix, Arizona. Dr. Robetorye is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Acute Myelomonocytic Leukemia, Chronic B-Cell Leukemia (CBCL), Chronic Lymphocytic Leukemia (CLL), and Richter Syndrome.

Daniel Persky is a Hematologist Oncology specialist and a Hematologist in Tucson, Arizona. Dr. Persky is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Non-Hodgkin Lymphoma, B-Cell Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Persky is currently accepting new patients.

Sumit Madan is a Hematologist Oncology provider in Gilbert, Arizona. Dr. Madan is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Multiple Myeloma, Relapsed Refractory Multiple Myeloma (RRMM), Smoldering Multiple Myeloma, Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Madan is currently accepting new patients.

Dr. Puneet Bhalla is a board certified Medical Oncologist and joined Ironwood Cancer & Research Centers in September 2006. Dr. Bhalla is a graduate of Bangalore Medical College, Bangalore University. He completed his Internal Medicine residency and Medical Oncology fellowship from William Beaumont Hospital, Royal Oak, Michigan. His research has been published in national and international oncology meetings and he remains actively involved in research at Ironwood Cancer & Research Centers. He has been practicing in the East Valley since 2003, initially in solo practice and since 2006 as part of Ironwood Cancer & Research Centers. He also serves on the Dignity Health East Valley Board of Directors for Mercy Gilbert and Chandler Regional Hospitals.A strong patient advocate, he routinely picks up the phone to communicate with other physicians and health insurance companies on his patients behalf. He has been nominated as Top Doc in medical oncology by his peers several times in Phoenix Magazine. As an extended faculty at Midwestern University he mentors medical students during their Oncology rotations. He is well respected by his peers in the community for his expertise in solid tumors.He lives in the Phoenix area with his wife and twin daughters and dog Frodo! In his spare time, he may be seen hiking with his family, riding his road bike or camping in the AZ high country. Dr. Bhalla is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Myelodysplastic Syndrome (MDS), and Familial Colorectal Cancer.

Dr. Roberts has been treating patients in Arizona for over 20 years and is board certified in medical oncology and hematology. Dr. Roberts is a member of the American College of Physicians, American Society of Internal Medicine, and American Society of Clinical Oncologists. He provides advanced high-quality compassionate cancer care in a community setting.  Dr. Roberts has a special interest in treating patients with lung, breast, colon, prostate, and hematologic malignancies. He is a member of the American College of Physicians, American Society of Internal Medicine, and American Society of Clinical Oncologists. Dr. Roberts has been recognized as a top doctor in PHOENIX magazine and a super doctor in Phoenix, and has been recognized by the Leukemia Lymphoma Society (LLS) and the American Society of Clinical Oncology (ASCO). He received a teaching excellence award from St. Joseph's hospital and has received numerous other nationally recognized physician awards. Dr. Roberts has extensive experience in research, serving as the principal investigator in more than 100 studies. He was a founding member of the Arizona Institute of Breast Health as well as the Center for Thoracic Disease.To help people achieve health for life. Dr. Roberts is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Familial Colorectal Cancer, Familial Prostate Cancer, Follicular Lymphoma, and Paget Disease of the Breast.

I believe that being an oncologist is a privilege that is not to be taken lightly. I strive to provide, evidence-based care that is appropriate to my patients' particular problem, recognizing and respecting individual patient's wishes. I take a multidisciplinary approach to care, including alternative therapies that have been shown to be effective. Dr. Nagaiah is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Essential Thrombocythemia, Adult Immune Thrombocytopenia, Immune Thrombocytopenic Purpura (ITP), and Hemangioma Thrombocytopenia Syndrome.

Dr. Michael Musci joined Ironwood Cancer & Research Centers in June 2007 as a Medical Oncologist. He comes to us from Kaiser Permanente Oncology Department in Walnut Creek, California. Dr. Musci received his medical degree and PhD at the University of Iowa. After Internal Medicine Residency, Dr. Musci received fellowship training in Hematology Oncology at UCSD Medical Center in San Diego, California. Dr. Musci is Board Certified in Internal Medicine, Hematology and Medical Oncology. Dr. Musci is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Pleuropulmonary Blastoma, Familial Colorectal Cancer, Severe Congenital Neutropenia, and Lung Cancer.

Tania Cortas is a Hematologist in Phoenix, Arizona. Dr. Cortas is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. Her top areas of expertise are Anal Cancer, Myelodysplastic Syndrome (MDS), Familial Colorectal Cancer, and Colorectal Cancer. Dr. Cortas is currently accepting new patients.

Dr. Cherington joined Ironwood Cancer &  Research Centers in July 2016 after completing his fellowship in Hematology and Medical Oncology at the Mayo clinic.  An Arizona native, he earned undergraduate degrees in Biology and Spanish at Arizona State University prior to attending the University of Arizona for his medical doctorate.  Dr. Cherington has presented research at ASCO and ASH and authored several research articles. However, what he values most is receiving the Gold Humanism Award, which recognizes him as possessing the personal characteristics that colleagues themselves would look for in a physician for themselves or their family members. Early in his youth, Dr. Cherington developed a passion to fight cancer when a childhood friend was diagnosed with a rare brain tumor.  His friend's cancer was aggressive, and her life was ultimately lost, but her tumor cells were donated to research new therapies. Years later, Dr. Cherington spent time at Barrow Neurological Institute investigating cell lines that most likely included his friend's saved cells. The fire that was ignited as a child was further fueled when Dr. Cherington's step-sister lost her life to cancer as a young adult. Today, in each new patient, Dr. Cherington sees a friend or family member who deserves the utmost compassion and expertise that modern medicine has to offer.Outside of work, Dr. Cherington enjoys hiking, exploring Arizona, sports, and spending time with his three children, his dog, and his beautiful wife.  Together, they are passionate about continually moving toward adopting lifestyle factors to prevent or slow cancer.  Dr. Cherington promotes using healthful lifestyle changes in conjunction with the best cancer treatment modern medicine has to offer to continually work towards a cure. Dr. Cherington is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Oligodendroglioma, Astrocytoma, Glioblastoma, and Gliosarcoma.

Dr. Neel Dharia joined Ironwood Cancer & Research Centers in January 2012. Dr. Dharia received his medical degree from Mumbai University, Mahatma Gandhi Missions Medical College in 1999. His residency was completed in Internal Medicine at McLaren Regional Medical Center and Michigan State University College of Human Medicine in Flint, Michigan. Dr. Dharia was a hospitalist at several Phoenix Valley hospitals between 2003-2007 and completed a fellowship in Hematology/Oncology at St. Elizabeth's Medical Center (affiliated with Tufts University School of Medicine) in Boston, Massachusetts from 2007-2010. He came back to Arizona in 2010 and is board-certified in medical oncology. Dr. Dharia's areas of interest include GI malignancies, melanoma, breast and lung cancers.You can find that team at Ironwood Cancer & Research Centers. With community-based centers strategically located throughout the Metro Phoenix area, Ironwood offers advanced therapies and a multi-disciplinary approach usually associated with large academic centers – but with a personalized touch recognizing the individual needs of the patient.Studies have shown the importance of a multi-disciplinary approach in effectively treating cancer. We spare you time and worry simply by having all the doctors, therapists, and resources you need in one convenient location, eliminating the delays and miscommunication. These collaborative efforts ensure the highest standards of care. Because Ironwood is actively involved in cutting-edge research, you can also benefit from promising new treatments through participation in clinical trials.  At Ironwood Cancer & Research Centers we evaluate you and develop a personalized treatment plan specifically for you to insure the best possible outcome. Dr. Dharia is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Familial Colorectal Cancer, Breast Cancer, Colorectal Cancer, and Lynch Syndrome.

Dr. Anita Koszyk-Szewczyk joined Ironwood Cancer & Research Centers in July 2009, after completing her Hematology and Oncology training at Penn State University Hershey Medical Center. Dr.Szewczyk has earned her medical degree at Jagiellonian University Collegium Medicum in Krakow, Poland and Honours Biology at McMaster University Hamilton, Canada. She served as Chief Fellow at Penn State University and her special interests include all forms of adult cancers and hematological disorders with special interest in Breast Cancer. She is originally from Poland and Canada. She is board certified in Internal Medicine, Hematology and Oncology. Dr. Koszyk is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, and Bone Marrow Aspiration.

Dr. DeRoock joined Ironwood Cancer & Research Centers in 2009 after completing residency in Internal Medicine followed by fellowship in Hematology and Oncology at the University of California at Davis. He is a first-generation Panamanian-American fluent in both English and Spanish. He previously earned his medical degree at the University of Arizona. Dr. DeRoock is board certified in Internal Medicine, Hematology and Medical Oncology. He has been active in developing clinical trials for pancreatic cancer and lymphoma, and has presented his research findings at the American Society of Hematology Annual Meeting as well as the Annual Pan-Pacific Lymphoma Conference. He specializes in all adult cancers and hematologic disorders.Supportive Cancer Care You Can TrustYou can find that team at Ironwood Cancer & Research Centers. With community-based centers strategically located throughout the Metro Phoenix area, Ironwood offers advanced therapies and a multi-disciplinary approach usually associated with large academic centers – but with a personalized touch recognizing the individual needs of the patient.Studies have shown the importance of a multi-disciplinary approach in effectively treating cancer. We spare you time and worry simply by having all the doctors, therapists, and resources you need in one convenient location, eliminating the delays and miscommunication. These collaborative efforts ensure the highest standards of care. Because Ironwood is actively involved in cutting-edge research, you can also benefit from promising new treatments through participation in clinical trials. Dr. Deroock is rated as an Advanced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Pulmonary Embolism, Nodular Lymphocyte-Predominant Hodgkin Lymphoma (NLPHL), Childhood Iron Deficiency Anemia, and Iron Deficiency Anemia.

Robert Rice is a Hematologist Oncology specialist and an Oncologist in Parker, Arizona. Dr. Rice is rated as an Experienced provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. His top areas of expertise are Mantle Cell Lymphoma (MCL), Multiple Myeloma, Paget Disease of the Breast, and Inflammatory Breast Cancer. Dr. Rice is currently accepting new patients.

Allison Rosenthal is a Hematologist Oncology specialist and a Hematologist in Phoenix, Arizona. Dr. Rosenthal has been practicing medicine for over 17 years and is rated as a Distinguished provider by MediFind in the treatment of Large-Cell Immunoblastic Lymphoma. Her top areas of expertise are Non-Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), B-Cell Lymphoma, Bone Marrow Transplant, and Bone Marrow Aspiration.