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  • Dr. Joseph A. Puma
  • Dr. Pankaj Khullar
  • Dr. Philip Green
  • Shayan Nabavi Nouri
  • Boris Boguslavskiy, DNP, APRN, AGNP-C
  • Dr. Linda Koshy
  • Dr. Justin Ratcliffe
  • Dr. Amisha Patel
  • Dr. Joydeep Ghosh
  • Yeveniya Zinger
  • Yelena Mazurskaya
  • Vladimir Kozhinskiy
  • Stephen Rubenstein MD, FACC
  • John J. Nobile, MD
  • Elizabeth Jones, FNP
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Joseph A. Puma

Dr. Joseph A. PumaDr. Joseph A. Puma is the founder and president of Sorin Medical. With over 30 years of clinical experience, Dr. Puma has dedicated his career to the treatment, diagnosis, and prevention of cardiovascular disease, providing personalized care to patients from around the world. He is board certified in Interventional Cardiology, Cardiovascular Disease, and Internal Medicine. Throughout his career, Dr. Puma has been at the forefront of interventional cardiology and made significant contributions to the development of this field by embracing healthcare innovation and the continuous improvement of patient care in underserved communities.

Dr. Puma graduated from the New York Institute of Technology College of Osteopathic Medicine with a Doctor of Osteopathic Medicine and completed his internal medicine residency and cardiology fellowship at Long Island Medical Hospital.

In 1991, he joined the Faculty of Duke University Medical Center and achieved the rank of Associate Consulting Professor of Medicine in Cardiology. During his tenure, he was the principal investigator in over 20 groundbreaking clinical trials at The Duke Clinical Research Institute, all of which have helped to define contemporary cardiovascular care. Dr. Puma has also published over 100 peer-reviewed articles and textbook chapters.

Dr. Puma’s career has been one of continuous growth and leadership in Clinical Care, Research, and Education. He has served as the Chief of the Cardiac Catheterization Lab at New York Methodist Hospital Cornell Heart Center, followed by Associate Director of Research and the Associate Director of the Interventional Cardiology Training Program at Lenox Hill Hospital. He most recently served as the Chief of Clinical Cardiology and Vice President of Strategy at Mount Sinai Morningside Hospital. Dr. Puma is currently an Assistant Clinical Professor of Medicine Cardiology at the College of Physicians & Surgeons at Columbia University Medical Center.

Dr. Puma has always been driven to deliver a new standard of community-based medicine in New York. Deeply inspired by the words of University of Notre Dame founder Father Edward Sorin – “be a force for good in this world” – Dr. Puma founded Sorin Medical in 2013, the city’s largest private interventional cardiology practice.


Justin A. Ratcliffe

Dr. Justin RatcliffeDr. Justin A. Ratcliffe is the Chief Medical Officer at Sorin Medical, P.C. Dr. Ratcliffe is also an Interventional Cardiologist specializing in complex percutaneous coronary intervention and is a leading national expert in the endovascular treatment of peripheral vascular disease. He has performed extensive research in these fields with many peer-reviewed publications and presentations at national meetings. Dr. Ratcliffe is passionate about advancing the innovation and development of minimally invasive interventional techniques for the treatment of heart and vascular disease. He has pioneered alternate access sites – as opposed to the traditional femoral approaches – in order to provide patients with safer, more comfortable and effective treatment options that can be performed in an outpatient, office-based setting. Furthermore, he is committed to serving all communities with superior medical care by bringing a comprehensive yet personalized approach, and utilizing a vast network of resources to efficiently take care of his patients.

After graduating from the University of California at Berkeley, Dr. Ratcliffe attended medical school at the Albert Einstein College of Medicine and then completed Internal Medicine residency and Cardiovascular and Interventional Cardiology fellowships at Mount Sinai Beth Israel in New York. He completed a Master of Business Administration degree at Columbia University and is Board Certified in multiple specialities including Interventional Cardiology, Endovascular Medicine, and Peripheral vascular ultrasound. Dr. Ratcliffe currently holds an academic appointment at Columbia University Medical Center. He is also a fellow of the American College of Cardiology (FACC) and the Society for Cardiovascular Interventions (FSCAI).

Pankaj Khullar

Dr. Pankaj KhullarDr. Khullar is a Medical Director and Venous Disease Program Director at Sorin Medical. He has extensive expertise in vascular medicine and vascular interventional procedures and is board certified in Interventional Cardiology, Vascular Interpretation, Cardiovascular Disease, Internal Medicine, Echocardiography, and Nuclear Cardiology.

Dr. Khullar graduated Summa Cum Laude from the Sophie Davis School of Biomedical Education, followed Cum Laude with a Doctor of Medicine from the State University of New York – Downstate Medical Center College of Medicine in 2009. He then completed his residency and three fellowships at Albert Einstein College of Medicine in vascular medicine & endovascular interventions, interventional cardiology, and cardiovascular disease.

As a respected member of the medical community, he has presented on and co-authored several publications related to heart failure and peripheral arterial disease. Dr. Khullar joined Sorin Medical in 2017. He also currently serves as the Assistant Clinical Professor of Medicine at Columbia University and is a staff physician at New York-Presbyterian Hospital, Columbia University Irving Medical Center. Passionate about serving diverse communities, Dr. Khullar speaks four different languages and treats every patient with a human-centered, preventative care approach.

Philip Green

Dr. Philip GreenDr. Philip Green is a highly accomplished interventional cardiologist and vascular medicine specialist who is board certified in Cardiovascular Disease, Interventional Cardiology, and Internal Medicine. After receiving his medical degree from Albert Einstein College of Medicine, Dr. Green completed his residency in Internal Medicine at Brigham and Women’s Hospital of Harvard Medical School. Dr. Green also completed fellowships at Columbia University Irving Medical Center in cardiovascular disease, interventional cardiology, and peripheral vascular intervention.

Prior to joining Sorin Medical, Dr. Green was an attending physician at NewYork-Presbyterian Hospital and an Associate Professor of Medicine at Columbia University Irving Medical Center. He is a recognized expert in the treatment of complex venous disease and thrombosis and co-founded the interdisciplinary Pulmonary Embolism Revascularization Team while at Columbia University.

Dr. Green has an extensive background in important research and has published over 70 peer-reviewed articles and book chapters. Dr. Green’s research has been recognized and funded by the National Institutes of Health sponsored career development award. He has also created the Frailty Score, which revolutionized and standardized the assessment of elderly patients undergoing percutaneous aortic valve replacement. His clinical research has focused on optimizing outcomes in high-risk populations with complex cardiovascular disease, while his training specialized in interventional cardiology, complex coronary disease, and outpatient and hospital-based cardiology.

In 2020, Dr. Green joined Sorin Medical and is also currently an Associate Clinical Professor at Icahn School of Medicine and Interventional Cardiologist at Mount Sinai Morningside Hospital. He is committed to delivering high-quality, personalized patient care and has intentionally chosen to practice in medically underserved and primarily minority communities in New York.

Linda M. Koshy

Dr. Linda KoshyDr. Linda M. Koshy is an interventional cardiologist at Sorin Medical who has dedicated her career to advancing cardiovascular medicine, particularly the treatment of complex coronary artery disease and women’s health. She is board certified in Interventional Cardiology, General Cardiology, Echocardiography, Nuclear Cardiology, and Vascular Interpretation.

Since joining Sorin Medical in 2021, Dr. Koshy has played an integral role in performing coronary and endovascular procedures and treatments. She has developed strong relationships with the communities and patients she serves throughout the New York boroughs and has joined staff at New York Presbyterian Hospital – Columbia University Irving Medical Center.

Dr. Koshy received her undergraduate and medical degree at the University of Miami’s Miller School of Medicine (Honors Program in Medicine). She completed her internship and residency in Internal Medicine at Duke University Hospital and completed her fellowships in Cardiology and Interventional Cardiology at New York University Langone Medical Center.

In addition to managing the broad spectrum of cardiovascular diseases, Dr. Koshy has a strong interest in advancing women’s cardiovascular issues and advocating for women in cardiology. Her special interests include patient safety and quality measures, including research publications highlighting the superiority of radial access and methods to reduce radiation exposure in the cardiac cath lab. Dr. Koshy previously served as a co-leader of the New York University Women in Cardiology group where she helped organize mentoring events for students, faculty, and fellows for three consecutive years.

Shayan Nabavi Nouri

Shayan Nabavi NouriDr. Shayan Nabavi Nouri is an attending interventional cardiologist at Sorin Medical. He is board certified in internal medicine, cardiology, interventional cardiology, and echocardiography.

Dr. Nabavi Nouri completed his undergraduate studies at the University of California, Berkeley with the highest distinction in general scholarship and departmental honors in molecular & cell biology. He graduated Cum Laude from The Feinberg School of Medicine at Northwestern University. During his studies, he was awarded both the Norval F. Zimmerman & Nathan Smith Davis medical scholarships. While at Northwestern University, Dr. Nabavi Nouri was also a frequent volunteer at the Community Health Clinic in Chicago, providing medical care to an underserved community of patients.

After graduation, he completed his medical training in internal medicine, cardiology, and interventional cardiology at Columbia University Irving Medical Center where he was recognized as cardiology fellow of the year. With nearly ten years of clinical and research experience, Dr. Nabavi Nouri has more than two dozen peer-reviewed research publications and has had the opportunity to present his research nationally.

In 2021, Dr. Nabavi Nouri joined Sorin Medical where he served his first year in an intense procedure-oriented position, expanding and honing his skills in coronary, peripheral and structural heart disease intervention. He was recently appointed to the staff at New York Presbyterian Hospital, Columbia University Irving Medical Center.

Amisha Patel

Dr. Amisha PatelDr. Amisha Patel is Director of The Structural & Valvular Heart Disease Program at Sorin Medical. A highly trained and decorated interventional cardiologist, she is board certified in Interventional Cardiology, Cardiovascular Disease, Echocardiography, and Internal Medicine.

Dr. Patel completed her undergraduate studies at Columbia University, received her medical degree from the University of Michigan and a Masters of Science in Clinical Investigation from the Feinberg School of Medicine at Northwestern University. She completed her residency in Internal Medicine at Yale University, and fellowship in cardiovascular disease at Northwestern University. In 2015, she returned to New York to complete fellowships at Columbia University Medical Center in interventional cardiology and structural heart & valve disease.

Dr. Patel’s research has been internationally important and recognized. In 2014 she was selected as the recipient of the prestigious Fulbright Scholarship from the US State Department and the Fogarty Global Health Fellowship from the National Institutes of Health for which she organized more than 14,000 screening echocardiograms in pregnant women defining the incidence and prevalence of Rheumatic Valvular Disease. Dr. Patel has received numerous academic awards and has more than 30 peer-reviewed publications.

Dr. Patel served as the Assistant Professor of Medicine at Columbia University and the Associate Director of Precision Medicine at NewYork-Presbyterian Hospital. Additionally, she has served as an executive committee member of the Heart Valve Collaboratory. More recently, she was the Director of the Structural Heart and Valve Center at Mount Sinai Morningside Hospital. Dr. Patel joined Sorin Medical in 2021.

Joydeep Ghosh

Dr. Joydeep GhoshDr. Joydeep Ghosh is a cardiac electrophysiologist at Sorin Medical who treats patients with heart rhythm disorders. He brings nearly 25 years of clinical experience to the Sorin team and is board certified in Clinical Cardiac Electrophysiology and Cardiovascular Disease.

Dr. Ghosh leads the Stroke Prevention Team at Sorin Medical in patients with Atrial Fibrillation.He specializes in Left Atrial Appendage Closure – a procedure to reduce the risk of stroke – in order that patients can reduce or stop blood thinning medication that often cause significant bleeding complications. Further through the most advanced technology, he coordinates the Remote Rhythm Management Program for patients with Pacemakers, Defibrillators and Implanted Rhythm Monitors.

Dr. Ghosh began his medical career in Kolkata, India and graduated from Nil Ratan Sircar Medical College and Hospital with a Bachelor of Medicine & Surgery. He practiced medicine in India until he moved to New York in 1995 where he completed his residency in internal medicine at the New York Medical College at Westchester Medical Center and a fellowship in cardiovascular disease. Dr. Ghosh also completed his training in clinical cardiac electrophysiology at Mount Sinai Hospital New York.

In 2003, he became Associate Clinical Professor of Medicine at Mount Sinai School of Medicine and Associate Director of Cardiac Electrophysiology at Maimonides Medical Center in Brooklyn.
Prior to joining Sorin Medical Dr. Ghosh was an Electrophysiologist for Columbia Doctors.

Yeveniya Zinger

Yeveniya ZingerDr. Yevgeniya Zinger is a primary care physician at Sorin Medical. She is board certified in Internal Medicine and brings over 30 years of clinical experience to the team.

Dr. Zinger graduated from Andijan State Medical Institute in Uzbekistan with a Doctor of Medicine. She went on to complete her PhD in Psychiatry from Moscow Medical Academy. In 1996, Dr. Zinger moved to New York and completed her fellowship in Psychiatry at the Bronx Psychiatric Center. She went on to complete her residency in internal medicine at Interfaith Medical Center and was later an attending physician in the outpatient department.

Dr. Zinger is often referred to as a doctor’s doctor. Her extensive training and background in both internal medicine and psychiatry gives her unique insights and understanding into both the physical and emotional aspects medical issues can have on a patient. She is an extraordinary clinician whose compassion and empathy makes her a treasured and valued member of the community,

In 2013, Dr. Zinger joined Sorin Medical. As a primary care physician, she is responsible for providing health evaluations, screenings and delivering personalized treatment to a community of patients in South Brooklyn.

Yelena Mazurskaya

Dr. Yelena MazurskayaDr. Yelena Mazurskaya has been an internal medicine physician at Sorin Medical since 2014. She is a trained pediatrician and osteopathic physician and board certified in Family Medicine, with over 35 years of clinical experience.

Dr. Mazurskaya graduated from Semashko Medical School in Moscow with a Doctor of Medicine. She began her career as an attending physician in the Department of Congenital and Hereditary Disease at the National Research Center for Pediatrics and Children’s Surgery and worked there for nearly a decade. In 1995, Dr. Mazurskaya moved to New York and attended the New York College of Osteopathic Medicine where she graduated with a Doctor of Osteopathy. Shortly after, she went on to complete her family practice residency at Peninsula Hospital Center.

Prior to joining Sorin Medical, she worked as a group associate and staff physician in various hospitals across New York. Dr. Mazurskaya is also a member of the American Osteopathic Association, American College of Osteopathic Family Physicians, and American Academy of Family Physicians.

Dr. Mazurskaya’s depth and breadth of experience dealing with patients with complex medical issues makes her an invaluable part of the Sorin team. She embodies the commitment to individualized community based care. She is a member of the Sorin Medical Women’s Heart Health Initiative and has spent more than 25 years treating underserved communities in New York.

Vladimir Kozhinskiy

Dr. Vladimir KozhinskiyDr. Vladimir Kozhinskiy has worked as an attending physician with Sorin Medical since 2014. He is board certified in Internal Medicine and brings over 40 years of clinical experience from Uzbekistan to the United States.

Dr. Kozhinskiy graduated from Samarkand State Medical Institute with a Doctor of Medicine and later earned his PhD in cardiology at the Hospital of National State Center of Cardiology. In Uzbekistan, he practiced in the field of cardiology for 22 years first as a Clinical Assistant and Clinical Associate Professor at the Tashkent Medical School, and later as the Chief of Cardiology and Chairman of Medicine at the National State Center of Emergency Medicine of Uzbekistan. In 2002, he immigrated to the United States and completed his residency at Long Island Jewish Forest Hills Hospital. Before joining the Sorin Medical team, he worked as an attending physician at Staten Island University Hospital.

Throughout his career, Dr. Kozhinskiy has published 51 articles and was awarded a patent for his method for diagnosing and treating coronary artery disease. Dr. Kozhinskiy remains dedicated to helping his patients improve their health and enriching the lives of those in his care.

Elizabeth Jones
Elizabeth Jones

Elizabeth ‘Liz’ Jones’ career has been one of continued education, growth and commitment to improving the health of her community.  Ms. Jones started her career as a Certified Laboratory Technician. Her deep caring for patients and desire to be more involved in clinical research and education were realized as a Clinical Research Coordinator for The Heart & Vascular Center. She was instrumental in enrolling patients and coordinating many groundbreaking clinical trials that defined current therapy for patients suffering heart attacks under the guidance of the Duke Clinical Research Institute and the TIMI Group of Harvard Medical School.

In addition to her full time clinical activities and raising her family, Liz continued her education, becoming a Registered Nurse and eventually a Nurse Practitioner (Old Dominion University) – able to evaluate and treat patients independently.

Liz endeavors to expand Specialty Medical Care to the underserved areas of Galax and Carroll & Grayson Counties. The effects of the Affordable Care Act on healthcare in rural communities has been devastating in terms of access, availability and affordability.

Liz’s passion and her partnering with Shannon Alderman, RN, convinced Dr. Puma and Sorin Medical to work together to bring Cardiovascular Care to the Galax Community.  Liz has developed a full time Cardiology practice, coordinates a Remote Cardiac Rhythm Management program for patients with Pacemakers, Defibrillators & Implantable Monitors in order that patients can receive care in their community,

Liz often quotes Dr. Puma who likes to say “Galax may be a small town, but it does not mean it has to be small time!”  Working diligently to grow and expand services to the community, Liz hopes to be able to provide invasive arterial & venous procedures and even an outpatient/mobile Cardiac Catheterization Lab in the near future.

Boris Boguslavskiy

Boris BoguslavskiyBoris Boguslavskiy, DNP, APRN, AGNP-C is a Doctor of Nursing Practice, Specializing in Cardiovascular Disease, Interventional Cardiology and Venous Disease. Boris has over 20 years of experience and completed his Doctor of Nursing Practice (Population Health Management) at Quinnipiac University in Connecticut.

Boris earned his Bachelor’s Degree in Business Management and Finance from City University of New York, Brooklyn College, concentrating in Healthcare Administration. He completed his R.N. at Mount Sinai Beth Israel School of Nursing and his Master’s in Nursing (Adult & Geriatric Nurse Practitioner) at Long Island University.

Boris has extensive clinical and administrative experience in Interventional Cardiology and Emergency Medicine and has had both clinical and leadership positions at Mount Sinai Beth Israel and Chinatown Cardiology. He has worked for 5 years as a R.N. in the Division of Cardiology at Mt. Sinai Beth Israel where he nurtured his passion for caring for patients with advanced heart & vascular disease. For the past 10 years he has practiced Interventional Cardiology and Vein Disease Management in several independent practices in New York, Florida and Arizona. He is dedicated to serving the underserved and abolishing health disparities in communities of color. He has personally coordinated and developed clinical practices in these communities and successfully improved the Heart & Vascular care of his patients.

He is a dedicated family man and father of 2 young children. As he returns to New York to raise his family he brings his dedication and expertise to Sorin Medical to improve access and quality of care in underserved communities.

John J. Nobile
John J. Nobile

A true ‘renaissance man’, Dr. Nobile brings to Sorin Medical his unique skills and life experiences.

Dr. Nobile graduated from the University of Rome (Italy) in Medicine.  Upon returning to New York he completed his Internship, Residency in Internal Medicine and Fellowship in Cardiovascular Disease  at Cabrini Medical Center.

Dr. Nobile has over 35 years experience treating patients with a wide variety of heart diseases.  He was a Full Time Attending Physician in the Coronary Intensive Care Unit at Cabrini Medical Center for 20 years,  Director of their Cardio-Pulmonary Resuscitation Program and an Imaging Attending in the Echocardiography Department.

For the past 35 years Dr. Nobile has been in Private Practice In New York City’s boroughs.  He has brought his expertise in clinical practice and imaging to multiple underserved communities in The Bronx & Upper Manhattan.  His command & fluency of multiple languages (Spanish, Italian, English) has enabled him to integrate and assimilate in multiple ethnic and underserved areas considered ‘healthcare deserts’.

In addition to his medical accomplishments, expansive linguistic skills and humanistic approach to his profession and life, Dr. Nobile is also an avid Wellness advocate. A credentialed Fitness Instructor and Spinning Instructor, Dr. Nobile has integrated principles of Fitness, Nutrition & Exercise in all his clinical activities and actively educates his patients.

Stephen Rubenstein

Dr. Stephen Rubenstein has been providing advanced Cardiology Care to the New York area for more than 40 years. His blend of broad Cardiovascular Disease knowledge and unique level of experience have made him an invaluable resource to all of Sorin Medical’s patients, physicians and staff.

Dr. Rubenstein graduated from The Chicago Medical School –University of the Health Sciences and completed his Internship & Residency in Internal Medicine at Mount Sinai Beth Israel and his Fellowship in Cardiovascular Disease at New York Presbyterian – Cornell Medical Center. He is certified by the American Board of Internal Medicine in Internal Medicine & Cardiovascular Disease.

Dr. Rubenstein is an accomplished and well-regarded physician and has been a Fellow of the American College of Cardiology. He is an expert in Preventive Cardiology and has developed a program to encourage patients to modify risk factors for heart disease for improved heart health – he is committed to helping patients Feel Better & Live Longer!

In addition to his myriad clinical experiences and achievements, Dr. Rubenstein is co- author of ‘Recovering from the Heart Attack Experience: Emotional Feelings, Medical Facts’ (E. Weiss, In Collaboration with S. Rubenstein, MD) (

Dr. Rubenstein has been an advocate in the changing paradigm of the detection and treatment of Coronary Artery Disease through the integration of Coronary CT Imaging (Sorin HeartScan).

Michael Shapiro

Michael Shapiro MDMichael Shapiro, MD, is a board-certified vascular surgeon, a fellow of the American College of Surgeons and member of the Society for Vascular Surgery. He has clinical expertise in endovascular and surgical therapies for the treatment and management of peripheral arterial disease (PAD).

Dr. Shapiro received his Bachelor’s degree from Cornell University and medical degree from Georgetown University School of Medicine. He completed his internship in general surgery at Yale University. He has distinguished himself academically by being published in several peer-reviewed journals at the Lenox Hill Heart and Vascular Institute, where he completed a residency program in vascular and endovascular surgery.

Previously, Dr. Shapiro was named interim chief of vascular surgery at New York-Presbyterian Brooklyn Methodist Hospital and then went on to be the medical director for Brooklyn Endovascular. He is currently a faculty member at Weill Cornell Medical College, where he teaches surgery to medical students and residents.

Dr. Shapiro specializes in advanced minimally invasive vascular and endovascular procedures with experience in limb salvage and vascular access for dialysis. He provides patients with PAD compassionate, patient-centered care. Leveraging his years of experience and training, Dr. Shapiro helps his patients feel at home while under his care.