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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.

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.

Nadia Jafar Curran, MD, is a board-certified internist and cardiologist at COR Healthcare Medical Associates. She specializes in women’s cardiovascular disease, general cardiology, echocardiography, and nuclear cardiology.

Dr. Curran earned her medical degree from New York University School of Medicine, where she received the Gilda Lipton Memorial Award for compassionate care and was inducted into the Alpha Omega Alpha Honor Medical Society. She then moved to San Francisco to complete her internal medicine residency and cardiology fellowship at the University of California, San Francisco (UCSF). During her training, Dr. Curran developed a curriculum that focused on women’s heart disease while researching lifestyle interventions in postpartum women with pregnancy complications. This research resulted in multiple presentations and publications, and informed the most recent guidelines on adverse pregnancy outcomes and cardiovascular disease.

Dr. Curran is excited to join COR Healthcare Medical Associates and brings her expertise in the diagnosis and treatment of cardiovascular conditions, including risk factor assessment, prevention, microvascular dysfunction, coronary artery disease, spontaneous coronary artery dissection (SCAD), valvular heart disease, heart failure and cardiomyopathies, preconception counseling, and pregnancy-related heart health.

When she is not taking care of patients, Dr. Curran enjoys spending time with her husband and exploring all that the South Bay has to offer, including swimming, surfing, and great dining.

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

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.

Bruce Jackson, MD, is a board-certified cardiologist and internist at COR Healthcare Medical Associates in Los Angeles. At the practice’s location in Redondo Beach, California, he specializes in diagnosing and treating cardiovascular disease and has almost 50 years of experience. 

In addition to treating patients at COR Healthcare Medical Associates, Dr. Jackson is affiliated with several area hospitals, including Harbor-UCLA Medical Center in West Carson, California, and Providence Little Company of Mary Medical Center in Torrance, California. Dr. Jackson was also an Associate Clinical Professor of Medicine/Cardiology at Harbor UCLA for 20 years and an Assistant Clinical Professor of Nursing at UCLA for 8 years

Dr. Jackson earned his medical degree from the University of California, Los Angeles (UCLA) School of Medicine. He completed an internal medicine residency at the University of California, San Diego, and a cardiology fellowship at Harbor-UCLA Medical Center. Dr. Jackson speaks English and Spanish.

When’s he’s not treating patients, Dr. Jackson is a ham radio operator with an interest in near space balloon communications. He enjoys relaxing with his wife, Susan, and spending time with their 11 grandchildren.

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.

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.

Sagar Patel, MD, is a general cardiologist at COR Medical Associates. He specializes in non-invasive cardiology and advanced imaging.

Dr. Patel earned his medical doctorate at the Keck School of Medicine at the University of Southern California. He completed his internal medicine residency at LAC+USC Medical Center/Keck Hospital of USC and his cardiovascular disease fellowship at the University of California, Riverside. Dr. Patel is board-certified in Internal Medicine, Adult Echocardiography, Cardiovascular Computed Tomography and Nuclear Medicine, and is board-eligible in Cardiology.

He has clinical interest in preventative cardiology, cholesterol management, hypertension, heart failure, cardiomyopathies, valvular heart disease, atrial fibrillation, and coronary artery disease.

As a southern California native, Dr. Patel is a huge fan of LA sports teams. He is an avid traveler, including exploring new national parks. He also enjoys live music and regularly attends concerts. He is proficient in Spanish.

Michael Healy, MD, is a board-certified cardiologist who specializes in interventional and structural cardiology. His areas of expertise include state-of-the-art, minimally-invasive procedures for the treatment of coronary and valvular heart disease.

Dr. Healy earned his medical degree with honors from Columbia University, College of Physicians and Surgeons. He completed internal medicine residency at the University of California, San Francisco (UCSF) and cardiology fellowship at Mount Sinai Hospital in New York City. Dr. Healy then completed interventional cardiology fellowship at Scripps Clinic in San Diego, followed by advanced training in structural heart, peripheral vascular, and complex coronary interventions. He is board-certified in internal medicine, cardiology, interventional cardiology, echocardiography, vascular interpretation, and cardiac CT.

Prior to being recruited to COR Healthcare, Dr. Healy worked as an interventional cardiologist at Scripps Clinic where he was part of the teaching faculty of the fellowship training program. Dr. Healy prides himself on providing evidence-based, cutting-edge care to his patients and has been a co-investigator in several clinical trials for novel interventional device technologies.

Dr. Healy enjoys getting to know his patients and focuses on all aspects of their lives in order to personalize their treatment plans. During visits, he prioritizes educating patients with the goal of empowering them to make the best decisions regarding their unique heart condition, while also coaching them back to maximal health.

During his free time, Dr. Healy enjoys spending quality time with his family and traveling abroad. He is also an avid long-distance runner.

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).