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 a Distinguished provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Pulmonary Embolism, Nodular Lymphocyte-Predominant Hodgkin Lymphoma (NLPHL), Childhood Iron Deficiency Anemia, and Iron Deficiency Anemia.

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 a Distinguished provider by MediFind in the treatment of Childhood Iron Deficiency 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.

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 a Distinguished provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Hemochromatosis, Non-Small Cell Lung Cancer (NSCLC), Plasmacytoma, and Lung Cancer.

Megan Jhaver is a primary care provider, practicing in Internal Medicine in Chandler, Arizona. Dr. Jhaver is rated as a Distinguished provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Hypertension, and Familial Hypertension. Dr. Jhaver is currently accepting new patients.

Dr. Mark Schlotterback, MD is a Family Doctor in Gilbert, AZ.Dr. Mark Schlotterback, a board certified family practitioner, has been practicing medicine for over a decade. Dr. Schlotterback earned his MD from University of Kansas Medical Center. After completion, he began his residency program at Good Samaritan Medical Center in Phoenix. Shortly after completing his residency, Dr. Schlotterback joined Gilbert Center for Family Medicine. Dr. Schlotterback comes from a long line of family of physicians beginning with his father who was a primary care physician in a small town in Kansas. Dr. Schlotterback has two children, Lexi and Luke who reside with him in Tempe. Dr. Schlotterback is an avid athlete who added the completion of the 2008 Iron Man Race to his list of accomplishments. Being the family doctor that he is, he finished this race while taking week-end call for the practice!. Dr. Schlotterback is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Glucocorticoid-Remediable Aldosteronism.

Dr. Sunildat Maheshwari, MD is a Family Doctor in Gilbert, AZ.Dr. Sunildat (Sunny) Maheshwari, a board certified family practitioner, joined the practice in October of 2010. Brought up in Southern California, and did his undergraduate education in Biology at University of California Riverside. Dr. Sunny earned his Medical Degree from St. Christopher College of Medicine, in England. After completion, he began his residency program at Greenville Hospital System, in Greenville, South Carolina. After completing his residency, Dr Sunny joined Gilbert Center for Family Medicine. He is a member of the American Medical Association and American Association of Family Practitioners. Dr Sunny is married and his personal interests are in tennis, snooker, information technology and international traveling. Dr. Maheshwari is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and High Cholesterol.

Ronald Lee is a primary care provider, practicing in Family Medicine in Gilbert, Arizona. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Neuralgia, Peripheral Neuropathy, Nasal Flaring, and Infant Hyperglycemia. Dr. Lee is currently accepting new patients.

Kalyan Mantripragada is a Hematologist in Gilbert, Arizona. Dr. Mantripragada is rated as a Distinguished provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Pulmonary Embolism, Hemochromatosis, Agranulocytosis, Childhood Iron Deficiency Anemia, and Gallbladder Removal.

Punya Gammage is a primary care provider, practicing in Family Medicine in Gilbert, Arizona. Dr. Gammage is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Vitamin D Deficiency, High Cholesterol, Cirrhosis, and Type 2 Diabetes (T2D). Dr. Gammage is currently accepting new patients.

Sandra Levitt is a primary care provider, practicing in Internal Medicine in Gilbert, Arizona. Dr. Levitt is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Menopause, Peripheral Neuropathy, Vertigo, and High Cholesterol. Dr. Levitt is currently accepting new patients.

Luz Lopez is a primary care provider, practicing in Family Medicine and Pediatrics in Mesa, Arizona. Dr. Lopez is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Chorea-Acanthocytosis, Hypolipoproteinemia, Familial HDL Deficiency, and Apo A-I Deficiency. Dr. Lopez is currently accepting new patients.

David Hatfield is a primary care provider, practicing in Family Medicine in Gilbert, Arizona. Dr. Hatfield is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Infant Epilepsy with Migrant Focal Crisis, Epilepsy in Children, Osteomyelitis in Children, and Hypertension. Dr. Hatfield is currently accepting new patients.

Allen Germaine is a primary care provider, practicing in Family Medicine in Mesa, Arizona. Dr. Germaine is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Type 2 Diabetes (T2D), Cirrhosis, Familial Combined Hyperlipidemia, and Xanthoma. Dr. Germaine is currently accepting new patients.

Tami Bruce is a primary care provider, practicing in Pediatrics and Internal Medicine in Mesa, Arizona. Dr. Bruce is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Cirrhosis, Familial Combined Hyperlipidemia, Xanthoma, and Obesity. Dr. Bruce is currently accepting new patients.

Robert Laufer is a primary care provider, practicing in Family Medicine in Mesa, Arizona. Dr. Laufer is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and Obesity in Children. Dr. Laufer is currently accepting new patients.

Jigna Patel is a primary care provider, practicing in Internal Medicine in Gilbert, Arizona. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Sitosterolemia, High Cholesterol, Familial Hypertension, and Hypertension. Dr. Patel is currently accepting new patients.

Petar Novakovic is a primary care provider, practicing in Family Medicine in Chandler, Arizona. Dr. Novakovic is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Idiopathic Edema, Nasal Flaring, High Cholesterol, and Multiple Carboxylase Deficiency. Dr. Novakovic is currently accepting new patients.

Ambuga Badari is a Hematologist Oncology specialist and a Hematologist in Gilbert, Arizona. Dr. Badari is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Thrombocytopenia, Multiple Myeloma, Non-Hodgkin Lymphoma, Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Badari is currently accepting new patients.

Dhivya Sugumar is a primary care provider, practicing in Internal Medicine in Gilbert, Arizona. Dr. Sugumar is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. Her top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Anemia, and Acute Mountain Sickness. Dr. Sugumar is currently accepting new patients.

Sucai Bi is a Hematologist Oncology specialist and a Hematologist in Gilbert, Arizona. Dr. Bi is rated as an Experienced provider by MediFind in the treatment of Childhood Iron Deficiency Anemia. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Muscle Invasive Bladder Cancer, and Non-Muscle Invasive Bladder Cancer. Dr. Bi is currently accepting new patients.