Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dr. Shin is board certified in cardiovascular disease, interventional cardiology and internal medicine. She received her undergraduate degree from Brown University in Providence, Rhode Island and she attended medical school at the University of Cincinnati College of Medicine in Cincinnati, Ohio. Dr. Shin completed her residency at the UCLA San Fernando Valley program, where she was chief resident, and her fellowships at Harbor UCLA Medical Center in Torrance, California and Good Samaritan Hospital in Los Angeles, California.
Dr. Shin specializes in interventional cardiology, management of advanced cardiac disease, cardiac catheterization, coronary stent placement, peripheral arterial disease and intervention, echocardiography, stress echocardiography and pacemakers.
She sits on numerous committees and is the Cardiology Subcommittee Chair for Torrance Memorial Medical Center.
She has received multiple honors and awards including the Society of Geriatric Cardiology Research Award; the Preventative Cardiology Award Program Grant; and the American Heart Association Fellowship Research Grant. Dr. Shin has been practicing in the South Bay for over 10 years. She is fluent in English and Korean.
Gene Kim, MD, is a board-certified cardiologist at COR Healthcare Medical Associates in Los Angeles. At the practice’s locations in Torrance and Manhattan Beach, California, he treats patients of all ages and specializes in cardiac electrophysiology, general cardiology, interventional cardiology, and adult congenital heart disease.
Dr. Kim earned his medical degree at Brown University in Providence, Rhode Island, before moving to California to complete an internal medicine residency at Los Angeles County+USC Medical Center. Dr. Kim continued his advanced medical training with fellowships in cardiology at Harbor-UCLA Medical Center in West Carson, California, and cardiac electrophysiology at the Good Samaritan Hospital in Los Angeles and Harbor-UCLA Medical Center.
He maintains certification in both cardiovascular disease and clinical cardiac electrophysiology by the American Board of Internal Medicine. He is fluent in English and Korean.
When he’s not diagnosing and treating patients with heart issues, Dr. Kim and his wife enjoy spending time with their two young sons and participating in all types of sports.
“Dr. Kim and his office made time for me with almost no noice. H worked me in just two days after I requested a visit. We discussed the serious issues, he offered me two possible alternatives. He was very kind and considerate to my doctor daughter who attended and that I am grateful.”
James Matchison, MD, is an experienced physician at COR Healthcare Medical Associates who holds board certifications in internal medicine, interventional cardiology, adult cardiovascular disease, and adult comprehensive echocardiography. With a broad range of experience, Dr. Matchison is proud to serve the communities of Torrance and Redondo Beach, California.
Dr. Matchison earned his undergraduate degree from the University of Arizona in Tucson, before attending Ohio State University College of Medicine and Public Health in his hometown of Columbus, Ohio. He later completed his residency at Harbor-UCLA Medical Center in Torrance, California, and a general cardiology and interventional cardiology fellowship at Kaiser Permanente Los Angeles Medical Center in Los Angeles.
As an experienced cardiologist, Dr. Matchison specializes in the management of advanced cardiac disease, cardiac catheterization, coronary stent placement, echocardiography, transcatheter aortic valve replacement (TAVR), and stress echocardiography.
He stays up-to-date with the latest treatments and is a member of the American Society of Cardiology and American Society of Echocardiography. Dr. Matchison has practiced in the South Bay area since 2012. Outside of work, he enjoys spending time with his family outdoors and exercising.
Arash Aghel, MD, is a board-certified internist and cardiologist at COR Healthcare Medical Associates in Los Angeles. He sees patients at the Torrance, California office where he specializes in general cardiology, interventional cardiology, structural heart, and peripheral vascular interventions.
Dr. Aghel earned his medical degree from Mashhad University of Medical Sciences in Iran before moving to Cleveland for his internal medicine residency and cardiology fellowship at Cleveland Clinic and Case Western Reserve University. He then moved to Colorado and completed 2 additional years of training in interventional cardiology and advanced structural and vascular interventions at the University of Colorado in Denver.
Dr. Aghel joins COR Healthcare Medical Associates from Colorado where he was busy practicing interventional cardiology for the past 7 years. He treats the entire scope of cardiac disease including complex coronary interventions, transcatheter aortic valve replacement, and peripheral vascular intervention with a focus on limb salvage/preservation.
He is board certified in cardiovascular medicine, interventional cardiology, echocardiography, vascular interpretation, and endovascular medicine.
Dr. Aghel is fluent in English and Farsi.
Outside of work, Dr. Aghel enjoys spending time outdoors with his wife and two daughters.
Eric Castleman, MD, is a board-certified cardiologist and internist at COR Healthcare Medical Associates in Los Angeles. He currently sees patients at the practice’s locations in Torrance and Redondo Beach, California, where he brings more than 35 years of experience specializing in general cardiology, and adult congenital heart disease.
Dr. Castleman earned his medical degree at Mount Sinai School of Medicine in New York City before moving to California for his medical training. He completed his internal medicine residency at the University of California, Los Angeles (UCLA) Medical Center and a cardiology fellowship from UC Irvine Medical Center in Orange, California.
Dr. Castleman has many interests outside of work. He loves spending time with his wife, who is a nurse, and their four children. He loves gardening, traveling, and tinkering in the garage repairing things.
Ankush Chhabra, MD, is a board-certified internist and cardiologist at COR Healthcare Medical Associates in Los Angeles. At the practice in Torrance and Manhattan Beach, California, he specializes in cardiovascular disease, nuclear cardiology, and peripheral vascular cardiology.
Dr. Chhabra earned his medical degree at Vanderbilt University School of Medicine in Nashville, Tennessee, before moving to Michigan for his internal medicine residency, which he completed at the University of Michigan in Ann Arbor. Dr. Chhabra received advanced training at the University of California, Los Angeles (UCLA), completing a cardiology fellowship in 2004 and an interventional cardiology fellowship in 2005. Wanting to offer patients the highest level of care possible, Dr. Chhabra also completed a peripheral vascular fellowship through Harvard University at Massachusetts General Hospital in Boston in 2006.
Dr. Chhabra speaks English and Hindi.
When he’s not caring for patients at COR Healthcare Medical Associates, Dr. Chhabra enjoys reading about the history of the United States presidency, as well as traveling and playing tennis.
Ray Wyman, MD, is a board-certified cardiologist specializing in general cardiology, internal medicine, interventional cardiology, and adult congenital heart disease. An experienced cardiologist with more than 20 years in his field, Dr. Wyman serves the community of Los Angeles at COR Healthcare Medical Associates in Torrance, California.
Dr. Wyman earned his medical doctorate from Johns Hopkins University School of Medicine in Baltimore before completing his internal medicine residency at Johns Hopkins Hospital in the same city. Dr. Wyman developed an interest in cardiology early in his career and later completed dual cardiology fellowships through Boston’s Beth Israel Hospital and Harvard Medical School in Cambridge, Massachusetts.
In addition to heart disease and heart attack treatment, anticoagulation management, and high blood pressure treatment, Dr. Wyman performs ongoing research in coronary artery stenting.
Dr. Wyman has many interests and hobbies outside of work. When he isn’t spending time with his wife and four children, he loves playing outdoor sports and cooking gourmet meals at home.
Sang Yong Ji, MD, is a board-certified adult cardiologist and cardiac electrophysiologist at COR Healthcare in Torrance, California. His board certification also includes internal medicine, nuclear cardiology, and echocardiography.
Dr. Ji was born in South Korea and moved to Paraguay during his junior high school year. He earned his medical degree from Asunción National University, Paraguay. He then moved to New York City to complete internal medicine residency and cardiology fellowship at Albert Einstein College of Medicine before completing a cardiac electrophysiology fellowship at Johns Hopkins Hospital in Baltimore, Maryland. He graduated as the Best Resident of the year and with Program director's award & Chief of Division award from internal medicine residency program and cardiology fellowship program respectively. He also served as chief fellow at both Montefiore cardiology fellowship program and Johns Hopkins University cardiac electrophysiology fellowship program. He provides state of the art care including complex ablations for different arrhythmias and implantation of cardiac electronic devices. He shares his expertise by authoring numerous publications in highly respected scientific and medical journals. He continues to stay active as current Principal Investigator in several clinical research projects at Torrance Memorial Medical Center as well.
Dr. Ji is fluent in English, Spanish, and Korean. When he’s not treating patients, Dr. Ji enjoys spending time with his wife, who is an internal medicine physician and their four children.
“Dr. Ji is very kind & he listens to his patients problems, asking how they are.
I do not feel rushed by him or his staff.
When l leave, l feel like my Dr. cares for me.”
Brenton Bauer, MD, is a board-certified internist and cardiologist at COR Healthcare in Los Angeles. He sees patients at the Torrance, Redondo Beach and El Segundo offices in addition to the cardiology department at Torrance Memorial Medical Center. He specializes in general cardiology, cardio-oncology, and advanced cardiac imaging.
Dr. Bauer completed his medical education and advanced training at the University of California, Los Angeles (UCLA). In addition to earning his Doctor of Medicine with honors, Dr. Bauer completed an internal medicine internship and residency, serving as chief resident, and a cardiovascular disease fellowship serving as chief fellow. He has been certified by the American Board of Internal Medicine in addition to subspecialty boards of Echocardiography, Cardiovascular CT, and Nuclear Cardiology. Dr. Bauer has written extensively for medical journals and other publications.
An award-winning physician, Dr. Bauer has been named to the American College of Cardiology’s (ACC) national conference program faculty, as an ACC National FIT (Fellows in Training) Jeopardy Competition finalist, as a finalist for the UCLA Most Outstanding Fellow Teaching Award, and won the best poster presentation in congenital heart disease at the American College of Cardiology’s 2015 conference, among others.
In his leisure time, Dr. Bauer loves traveling the world with his wife and junior high sweetheart. They particularly enjoy experiencing different cultures, trying amazing food, and learning different languages (to which he is fluent in English and Spanish and working on others including Italian).
As a triple diplomate with the American Board, Erol Kosar, MD, holds board certifications in clinical cardiac electrophysiology, cardiovascular diseases, and internal medicine. At COR Healthcare Medical Associates in Los Angeles, Dr. Kosar proudly brings his 30 years of experience to patients of all ages at the practice’s location in Torrance, California.
He is also certified by the International Board of Heart Rhythm Examiners (IBHRE).
After earning his medical doctorate at Sidney Kimmel Medical College, Thomas Jefferson University, in Philadelphia in 1989, Dr. Kosar completed an internal medicine internship and residency at the University of Pittsburgh in 1992. He later received additional training through a cardiology and electrophysiology fellowship at the University of Southern California (USC) in Los Angeles. After completing his fellowship, Dr. Kosar served as a full-time assistant professor of medicine at USC.
Continuing education is a top priority for Dr. Kosar, who is a Western regional trainer for excimer laser lead extraction — developed by Spectranetics® — which uses laser technology to remove permanent pacemaker lead.
Dr. Kosar is highly trained in all aspects of cardiology and cardiac electrophysiology, but his special research interests include cardiac resynchronization, sudden cardiac arrest, lead extraction, and atrial fibrillation.
As a leader in his field, Dr. Kosar has authored numerous publications in Circulation, Journal of the American College of Cardiology, and Cardiac Electrophysiology Review.
Not only does Dr. Kosar work with patients at COR Healthcare Medical Associates in San Pedro, CA, but he is also on staff at Providence Little Company of Mary Medical Center in Torrance, and Torrance Memorial Medical Center
A triple diplomate of the American Board of Internal Medicine, Matthew Ostrom, MD, is board-certified in clinical cardiac electrophysiology, cardiovascular disease, nuclear cardiology, and internal medicine. Dr. Ostrom, who has more than 15 years of experience, serves the Los Angeles communities of Torrance and Redondo Beach, California, at COR Healthcare Medical Associates.
Born and raised in Seattle, Dr. Ostrom received his Bachelor of Science in microbiology from the University of Washington in 1999. Throughout his undergraduate studies, Dr. Ostrom was actively involved in cardiovascular research at the university and at the local biotechnology company ZymoGenetics, Inc.
Shortly after graduating, Dr. Ostrom began his medical studies at Loyola University Chicago Stritch School of Medicine. He completed an internal medicine internship and residency through the University of California, Los Angeles (UCLA) system. In addition, Dr. Ostrom pursued cardiology and electrophysiology fellowships at Harbor-UCLA Medical Center in West Carson, California, and at Kaiser Permanente Los Angeles Medical Center in Los Angeles. He is a fellow of the American College of Cardiology and the Heart Rhythm Society.
Today, Dr. Ostrom is a practicing electrophysiologist, specializing in catheter and device-based therapies in the treatment of complex arrhythmias, syncope, sudden cardiac death, and heart failure.
His research interests include the ablation of complex arrhythmias and device-based treatments for sudden cardiac death and congestive heart failure. Dr. Ostrom has authored or co-authored numerous articles in peer-reviewed cardiology and electrophysiology journals.
In addition to his work at COR Healthcare Medical Associates, Dr. Ostrom is on staff at Providence Little Company of Mary Medical Center and Torrance Memorial Medical Center.
Away from work, Dr. Ostrom loves spending time outdoors with his wife and children.
Board-certified cardiologist Ethan Yalvac, MD, FACC, FSCAI, RPVI, CBNC, is proud to provide comprehensive care to patients at Cardiology Specialists of Orange County in Santa Ana, Irvine, and Newport Beach, California.
Dr. Yalvac received his Bachelor of Arts in economics and math, graduating cum laude. He earned his Doctor of Medicine from the University of Texas Medical Branch School of Medicine in Galveston. He then completed his internship and residency in internal medicine at Tulane University in New Orleans, Louisiana. Afterward, Dr. Yalvac completed a general cardiology fellowship at the Tulane University Heart and Vascular Institute before completing an interventional cardiology fellowship at the University of California, San Diego.
He holds certification from the Board of Nuclear Cardiology in advanced cardiac life support and is Level II trained in echocardiography. Dr. Yalvac is a member of the Society for Vascular Ultrasound, and a fellow of the American College of Cardiology and the Society for Cardiovascular Angiography and Interventions.
Dr. Yalvac is affiliated with Hoag Hospital and Hoag Vascular Institute in Newport Beach, Hoag Hospital & Orthopedic Institute in Irvine, St. Joseph Hospital in Orange, and Orange County Medical Center in Santa Ana, California.
Mahmoud Eslami-Farsani, MD, FACC, FSCAI, is a board-certified cardiologist at Cardiology Specialists of Orange County in Santa Ana, Irvine, and Newport Beach, California. He has special interests in coronary intervention, including angioplasty, stent placement, valvuloplasty, valvular heart disease, and peripheral vascular intervention.
Dr. Eslami-Farsani earned his medical degree from Hahnemann University in Philadelphia, Pennsylvania. He then completed his internship and residency at the University of California, Irvine Medical Center in Orange, California, before completing his interventional and cardiology fellowships at the University of Southern California in Los Angeles.
He holds board-certifications in cardiovascular disease, interventional cardiology, and internal medicine. To remain up-to-date on the latest developments in his field, Dr. Eslami-Farsani is a member of the American College of Cardiology, the American Medical Association, and the American College of Physicians.
Dr. Eslami-Farsani is currently welcoming new patients and looks forward to partnering with them. Schedule an appointment with Dr. Eslami-Farsani by calling the office or booking online today.
Ryan Burris, MD is a board-certified cardiac electrophysiologist and cardiologist at Cardiology Specialists of Orange County (CSOC) practicing in Santa Ana, Irvine, and Newport Beach, California. He has special interests in catheter ablation of SVT, atrial fibrillation, atrial flutter, and VT as well as in implantation of cardioverter-defibrillators (including subcutaneous systems), permanent pacemakers (including leadless technologies), and CRT insertion.
Dr. Burris attended UC San Diego for his undergraduate and graduate degrees and then received his medical degree from UC Irvine where he subsequently completed his internal medicine residency and cardiology fellowship. He then completed his advanced fellowship training in clinical cardiac electrophysiology at the University of Chicago where he focused on complex ablations and device implantation. In addition to his board certifications in both cardiac electrophysiology and cardiology, he is board certified in internal medicine and adult comprehensive echocardiography.
Dr. Burris is welcoming new patients and is affiliated with Hoag Hospital Heart and Vascular Institute in Newport Beach, Hoag Hospital Irvine, & Hoag Orthopedic Institute, St. Joseph Hospital in Orange, and Orange County Global Medical Center in Santa Ana.
Ali Ashtiani, MD is a fellowship-trained, board-eligible interventional cardiologist at Cardiology Specialists of Orange County (CSOC) practicing in Santa Ana, Irvine, and Newport Beach, California. He has special interests in coronary intervention including coronary angioplasty & stent placement, pacemaker implantation, and valvular/structural heart disease.
Dr. Ashtiani received his medical training in our very own Orange County. After earning his medical degree from the University of California, Irvine Medical Center in Orange, California, he went on to complete internal medicine internship and residency followed by cardiology fellowship and advanced fellowship training in interventional cardiology at the same institution.
Dr. Ashtiani is affiliated with Hoag Hospital Heart and Vascular Institute in Newport Beach, Hoag Hospital Irvine, & Hoag Orthopedic Institute, St. Joseph Hospital in Orange, and Orange County Global Medical Center in Santa Ana.
Dr. Ashtiani is currently welcoming new patients and looks forward to providing individualized care with patience and compassion just as he would treat his own family. Schedule an appointment with Dr. Ashtiani by contacting our office today.
Philosophy: Dr. Bahram Eslami follows the basic principles of evidence and scientific based medicine with an altruistic and compassionate approach. Currently practices general cardiology, cardiac catheterization and transesophageal echocardiography with an in-depth of knowledge in prevention of cardiovascular disease, lipid disorders, hypertension, coronary artery disease, valvular heart disease, adult congenital heart disease, cardiac arrhythmias and coronary intervention.
Present Position: Full partner with Cardiology Specialists of Orange County Director, Cardiovascular Services, Hoag Hospital Irvine
Marital Status: Married, three children
Education: High School – Adab, Isfahan Iran, Diploma College/Medical School – Isfahan University School of Medicine (including one year of Internship) Internship – Greater Baltimore Medical Center, Baltimore, Maryland Residency – Medical College of Georgia, Augusta, Georgia Cardiology Fellowship – University of Alabama in Birmingham, Birmingham, Alabama
Awards & Honors: Best student Award in High School, College and Medical School (Graduated top in class) Recipient of Scholarship for Post- Doctoral training in US and Europe (Three (3) positions offered by Iranian Ministry of Higher Education)
Military Service: Exempted, a privilege of graduating at the top of class in the seven years of medical school
Memberships: Fellow of the American College of Cardiology Fellow of the American College of Physicians
Medical Specialty Boards: Diplomate, American Board of Internal Medicine # 38570 Diplomate, American Board of Cardiovascular Disease #38570 Diplomate, American Board of Cardiovascular Computed Tomography #845
State Licenses: California: #C42075 Virginia: #24325 Tennessee: #MD16706 District of Columbia: #15718 Maryland: #D33978 ECFMG: #099-657
Past and Present Positions:
Instructor in Medicine – University of Alabama in Birmingham
Director of Training and Research – Tehran Cardiovascular Medical Center
Chief of Cardiology – Tehran Cardiovascular Medical Center, Tehran, Iran (400 bed Cardiovascular Referral and Research Center)
Associate Professor of Medicine and Chief, Department of Cardiology – National University of Iran, Tehran, Iran
Chief, Department of Cardiology and Director of Cardiac Catheterization Laboratories – American Hospital of Tehran, Tehran, Iran
Vice-President – Iranian Society of Cardiology
Examiner of the Iranian Board of Cardiology – Ministry of Higher Education
Lecturer at Tehran University, School of Medicine
Associate Professor of Medicine, Chief of Cardiology, Director of Cardiac Catheterization Laboratory – Meharry Medical College, Nashville, Tennessee
Chairman, CCU Committee – Chapman Medical Center, Orange, CA
Vice Chairman, Department of Cardiology – Western Medical Center, Santa Ana, CA
Chairman, Department of Cardiology – Western Medical Center, Santa Ana, CA
Director, Cardiovascular Services – Hoag Hospital, Irvine, CA
Private Practice – Cardiology Specialists of Orange County, Orange County, CA
Publications: Co-authored the book entitled Cardiology Review and has published numerous articles in peer reviewed journals. A compilation of the work has been presented at various scientific meetings.
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