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 Richter Syndrome. His top areas of expertise are Marginal Zone Lymphoma (MZL), Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), and Richter Syndrome.

Abhijeet Kumar is an Oncologist in Tucson, Arizona. Dr. Kumar is rated as a Distinguished provider by MediFind in the treatment of Richter Syndrome. 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.

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

Alan Langerak is an Internal Medicine provider in Prescott, Arizona. Dr. Langerak is rated as a Distinguished provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Familial Colorectal Cancer, Paget Disease of the Breast, Chronic Lymphocytic Leukemia (CLL), Lung Cancer, and Myringotomy. Dr. Langerak is currently accepting new patients.

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 Richter Syndrome. 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.

I enjoy reading, staying up-to-date on the latest medical care, skiing and golfing. Dr. Chen is rated as a Distinguished provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Inflammatory Breast Cancer, Gastric Lymphoma, Paget Disease of the Breast, and Angiosarcoma.

I enjoy spending time with family and friends, hiking, gardening. Dr. Dave is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. Her top areas of expertise are Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), Richter Syndrome, and Familial Prostate Cancer.

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 Richter Syndrome. His top areas of expertise are Pulmonary Embolism, Nodular Lymphocyte-Predominant Hodgkin Lymphoma (NLPHL), Childhood Iron Deficiency Anemia, and Iron Deficiency Anemia.

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 an Advanced provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Familial Colorectal Cancer, Adult Soft Tissue Sarcoma, Clear Cell Sarcoma, and WT1-Related Wilms Tumor Syndromes.

Dr. Ortiz Cruz joined Ironwood Cancer & Research Center in September 2014, after completing her hematology and medical oncology fellowship at the University of South Carolina in Charleston. She completed two years of research at the National Cancer Institute | National Institutes of Health in Bethesda Maryland where she was involved with clinical research in radiation oncology in addition to work with medical oncology. Dr. Ortiz Cruz also completed an internal medicineresidency training program at Banner Good Samaritan Medical Center in Phoenix. She has published several articles in scientific journals and presented at various meetings. Dr. Cruz's specializes in solid tumor and hematologic disorders with a special interest in breast, colon cancer and lymphoma. Dr. Cruz's goal is to deliver the best care available for her patients by providing personalized treatment planning in conjunction with cutting-edge therapy.Dr. Cruz's personal goal is to deliver the best care available for her patients with the understanding that personalized treatment planning in conjunction with utilizing cutting-edge therapy is the best means to achieve this goal. Dr. Cruz is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. Her top areas of expertise are Breast Cancer, Severe Congenital Neutropenia, Paget Disease of the Breast, and Chronic Familial Neutropenia.

I enjoy spending time with family, fine arts, philosophy, community service, meditation and reading. Dr. Narayan is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. Her top areas of expertise are Inflammatory Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Familial Pancreatic Cancer.

Dr. Kellogg has practiced with Ironwood Cancer & Research Centers as a partner since 1995. He is a graduate of Wayne State University School of Medicine and completed his residency and fellowship at Wayne State University Affiliated Hospitals. Prior to joining ICRC Dr. Kellogg was an Assistant Professor of Medicine at Wayne State University and the Detroit Medical Center working on the breast cancer service. While at the university, in addition to treating patients Dr. Kellogg was involved in conducting multiple clinical research studies. Dr. Kellogg was also Chief Medical Resident at Detroit Receiving Hospital. Dr Kellogg has been recognized by Phoenix Magazine as Top Doc. Dr. Kellogg is Board Certified in Internal Medicine with Specialty Board Certifications in Medical Oncology and Hematology and maintains an active practice concentrating on all types of adult cancers and blood disorders. Dr. Kellogg is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Breast Cancer, B-Cell Lymphoma, Paget Disease of the Breast, and Schnitzler Syndrome.

My wife Beverly and I raise our toddler grandson and in my free time I manage a microbrewery in Casper, Wyoming. I enjoy skiing, scuba, and staying fit. When time, I enjoy community theater and have been in many musicals. My wife and I also participate in ballroom dancing. Dr. Rosen is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Small Lymphocytic Lymphoma (SLL), Chronic Lymphocytic Leukemia (CLL), Richter Syndrome, and Chronic B-Cell Leukemia (CBCL).

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 Richter Syndrome. His top areas of expertise are Familial Colorectal Cancer, Breast Cancer, Colorectal Cancer, and Lynch Syndrome.

I enjoy photography, travelling, reading and music. Dr. Bi is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Muscle Invasive Bladder Cancer, and Non-Muscle Invasive Bladder Cancer.

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 Richter Syndrome. His top areas of expertise are Pleuropulmonary Blastoma, Familial Colorectal Cancer, Severe Congenital Neutropenia, and Lung Cancer.

Robin Obenchain is a Hematologist in Chandler, Arizona. Dr. Obenchain is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Inflammatory Breast Cancer, and Angiosarcoma. Dr. Obenchain is currently accepting new patients.

Dr. Sumeet Mendonca joined Ironwood Cancer & Research Centers in January 2012. On completion of her training in Hematology/Medical Oncology at St Elizabeth Medical Center, Tufts University, Boston, Dr. Sumeet Kumar Mendonca joined Desert Oncology Associates in 2008, now part of Ironwood Cancer and Research Centers. Being part of an expatriate family she received a global educational imprint in places like India, Singapore and Nigeria. On completion of Medical School in MGM, Mumbai University, India she dedicated two years to research in the field of Cancer Immunotherapy at the University of Connecticut Health Center. Her work was very well received and resulted in a number of publications in several peer reviewed journals. Dr Mendonca is board certified in Internal Medicine and Medical Oncology and treats all forms of adult cancers with a key interest in solid tumors, including breast cancer. She has been a prominent advocate for the promotion of women's health, focusing on prevention, early diagnosis and treatment of breast cancer. Dr. Mendonca's special interests are in delivering individualized care in a comprehensive and compassionate manner. Dr. Mendonca is rated as an Advanced provider by MediFind in the treatment of Richter Syndrome. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Severe Congenital Neutropenia, and Chronic Familial Neutropenia.

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 Richter Syndrome. His top areas of expertise are Essential Thrombocythemia, Adult Immune Thrombocytopenia, Immune Thrombocytopenic Purpura (ITP), and Hemangioma Thrombocytopenia Syndrome.

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 Richter Syndrome. His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Myelodysplastic Syndrome (MDS), and Familial Colorectal Cancer.