Our Physicians
Listed below are our four outstanding providers of CSMG. Please see the 'About Us' page to get more information on our hospital affiliations.
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Kaustubh V. Patankar, M.D., FACC Cardiologist & Medical Director, CSMG
Dr. Patankar has been in private practice in Riverside for over 15 years. After completion of his Cardiology Fellowship at the University of California, San Francisco, he trained in Interventional Cardiology at the prestigious Galichia Institute in Wichita, Kansas. Board Certified in Internal Medicine, Cardiology and Interventional Cardiology, he treats all types of cardiovascular conditions and specializes in pacemakers, coronary and peripheral interventions. Dr. Patankar serves on various hospital and medical boards and is committed to improving medical care in the community.
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Mimi Sen Biswas, M.D., MHSc Cardiologist & Director, CSMG Women’s Heart Clinic
Dr. Biswas completed her B.S. at the California Institute of Technology (Cal Tech), received her MD from the UCLA School of Medicine, and completed her residency at Cedars-Sinai Medical Center in Los Angeles. At Duke University Medical Center, she completed her Cardiology Fellowship, a fellowship in Women’s Health, obtained a Master’s in Health Science, and is still involved in clinical research. While on faculty at Duke, she founded and was the Clinical Director of the Duke Women’s Heart Care Clinic. In addition to being board certified in Internal Medicine, Cardiology and Nuclear Cardiology, she is trained in cardiac CT imaging. She specializes in cardiovascular imaging, prevention and women’s cardiovascular care. Dr. Biswas is dedicated to developing a center for Women’s Heart Health in the Inland Empire, and to raising awareness about women and heart disease.
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Ramin B. Ashtiani, M.D.
Dr. Ashtiani is a native of Iran who is now naturalized in the States. He came to the United States after completion of medical school in December of 1994. He has always been passionate about the field of cardiology. He started working as a research associate in the field of cardiology at VA Loma Linda and then Mount Sinai New York for three years. His research interest extended throughout residency, fellowships and private practice. He has published numerous scientific papers during these periods. He finished his Internal Medicine residency at Mount Sinai Hospital /Elmhurst Hospital in NY for three years. He then joined Mount Sinai, NY for his cardiology fellowship for another three years. Eventually, he completed his education at Texas Heart Institute/Baylor School of Medicine in the field of cardiac electrophysiology. His interests are in cardiac arrhythmia, ablation, pacemakers, defibrillators and congestive heart failure.
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Cynthia R. Pitchford, MSN, ACNP
Cynthia R. Pitchford, MSN, ACNP, obtained her bachelor’s degree in nursing from the University of Southern California in 2001. She then obtained her master’s of science degree in nursing from California State University, Los Angeles in 2009, specializing as an acute care nurse practitioner. She completed several graduate internships in cardiothoracic surgery at LAC/USC Medical Center and thoracic surgery at Harbor UCLA Medical Center. She is a member of the California Association for Nurse Practitioners, the American Academy of Nurse Practitioners, and the Sigma Theta Tau International Honor Society in nursing. Cynthia’s professional nursing experience includes 11 years of critical care in medicine, trauma, neurosurgery, neurology and the coronary care unit.
