Dr. Khosla has expertise in all aspects of digestive and liver diseases. He has a novel and highly successful approach to irritable bowel. His goal is to provide compassionate care to every patient and perform endoscopy with diligence.Our mission is to provide you with personalized, high-quality gastrointestinal care.  Sonoran Gastroenterology Associates is dedicated to improving and maintaining your health. Dr. Lowe and Dr. Khosla are Board Certified Gastroenterologists with years of experience. Dr. Khosla is rated as an Advanced provider by MediFind in the treatment of Anemia. His top areas of expertise are Colonic Malakoplakia, Viral Gastroenteritis, Colitis, and Gastroesophageal Reflux Disease (GERD).

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 Anemia. His top areas of expertise are Breast Cancer, B-Cell Lymphoma, Paget Disease of the Breast, and Schnitzler 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 Anemia. 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. 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 Anemia. His top areas of expertise are Oligodendroglioma, Astrocytoma, Glioblastoma, and Gliosarcoma.

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 an Advanced provider by MediFind in the treatment of Anemia. His top areas of expertise are Lung Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Severe Congenital Neutropenia.

Joining Ironwood Cancer & Research Centers in 2004, Dr. Shtivelband received his medical degree and PhD in Experimental Hematology in Russia. After Internal Medicine Residency, Dr. Shtivelband received fellowship training in Hematology and Medical Oncology at MD Anderson Cancer Center in Houston, where he stayed for an additional year to participate in experimental research. Treating patients with all kinds of malignancies and benign hematological problems, Dr. Shtivelband has particular interest in developing research programs to bring the newest advances in the field of Oncology and Hematology to our community. Dr. Shtivelband also heads the Ironwood Cancer & Research Center's research program. He is Board Certified in Internal Medicine, Hematology and Medical Oncology. Dr. Shtivelband is rated as an Advanced provider by MediFind in the treatment of Anemia. His top areas of expertise are Hemochromatosis, Non-Small Cell Lung Cancer (NSCLC), Plasmacytoma, 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 Anemia. 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.

I was born and raised in Southern California, but lived in Nebraska for about 9 years during my general medical training. I've been in Arizona since 2001. I live in the Phoenix area with my wife, 2 sons, and our Labrador retriever. When I'm not working or hanging out with the family I can be found in the hills on my mountain bike.Traditional Medicine: Listen, learn, teach. Dr. Davis is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Heartburn, Hiatal Hernia, Congenital Diaphragmatic Hernia, Gas Bloat Syndrome, and Gastrectomy.

Abdul Nadir is a Gastroenterologist in Chandler, Arizona. Dr. Nadir is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Jaundice, Hepatitis C, Hepatitis, Gastrectomy, and Endoscopy. Dr. Nadir is currently accepting new patients.

Azam Farooqui is an Internal Medicine provider in Chandler, Arizona. Dr. Farooqui is rated as an Advanced provider by MediFind in the treatment of Anemia. His top areas of expertise are Pulmonary Embolism, Lung Cancer, Pleuropulmonary Blastoma, and Venous Thromboembolism (VTE). Dr. Farooqui is currently accepting new patients.

Onyemaechi Okolo is an Internal Medicine provider in Chandler, Arizona. Dr. Okolo is rated as an Advanced provider by MediFind in the treatment of Anemia. Her top areas of expertise are Childhood Iron Deficiency Anemia, Agranulocytosis, Chronic Familial Neutropenia, and Iron Deficiency Anemia. Dr. Okolo is currently accepting new patients.

Pina Shah is a primary care provider, practicing in Internal Medicine in Chandler, Arizona. Dr. Shah is rated as an Experienced provider by MediFind in the treatment of Anemia. Her top areas of expertise are Hypothyroidism, High Cholesterol, Type 2 Diabetes (T2D), and Familial Hypertension. Dr. Shah is currently accepting new patients.

Huma Rashid is a primary care provider, practicing in Family Medicine in Chandler, Arizona. Dr. Rashid is rated as an Experienced provider by MediFind in the treatment of Anemia. Her top areas of expertise are Stroke, Pneumonia, Peptic Ulcer, Colonoscopy, and Endoscopy.

Ravi Gupta is a primary care provider, practicing in Internal Medicine in Chandler, Arizona. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Lung Metastases, Myelodysplastic Syndrome (MDS), End-Stage Renal Disease (ESRD), Liver Embolization, and Carotid Artery Surgery. Dr. Gupta is currently accepting new patients.

Jianwen Wu is a primary care provider, practicing in Internal Medicine in Chandler, Arizona. Dr. Wu is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Osteomyelitis in Children, High Cholesterol, Shingles, and Osteoporosis. Dr. Wu is currently accepting new patients.

Our mission is to provide the highest quality medical care in a supportive and comprehensive enviroment. We focus on each patient as an individual, taking the time to effect the best out comes. Dr. Burgess is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Tenesmus, Painful Swallowing, Swallowing Difficulty, Gastrectomy, and Colonoscopy.

As an internist and primary care physician ,I believe in prevention as the best way to live healthy long life. Dr. Alsheikh is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Hypothyroidism, and Obesity in Children.

I believe in treating the whole patient and looking for the underlying causes to your medical complaints. I want my office to be a comfortable environment where you feel cared for. When you come to my office, your health and well-being is my top concern. Dr. Roso is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Infant Hyperglycemia, Cirrhosis, Familial Combined Hyperlipidemia, and Xanthoma.

Dr. Hajbandeh believes in taking the time to treat the whole person and not rushing you into and out of the exam room. He is careful to explain test results, and discuss the pros and cons of treatment. His office will always call back on lab and radiology results, good or bad. No more assuming that results are normal! He works hard to prevent disease through screening as well as encouraging, coaching, and cheering on healthy lifestyles. Dr. Hajbandeh is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are Osteomyelitis in Children, Familial Combined Hyperlipidemia, Xanthoma, and Cirrhosis.

Thomas is an empathetic provider, dedicated to building partnerships with his patients and empowering them to achieve optimum health through open communication, education, and access to the latest health care innovations. Focusing on preventive care as well as chronic disease management, he treats patients with a respectful, individualized approach. Outside of work, Thomas loves spending time with his family and pets, and enjoys an active lifestyle that includes walking, swimming, and the occasional Nerf war with his sons. He is active in his church and volunteers with an organization supporting children of inmates. Thomas attended University of Texas Medical Branch at Galveston and completed his residency at Christus St. Josephs Hospital in Houston, Texas. He is certified by the American Board of Family Medicine. Dr. Tsai is rated as an Experienced provider by MediFind in the treatment of Anemia. His top areas of expertise are High Cholesterol, Coccidioidomycosis, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).