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Jennifer Chen, MD, FACC, is a board-certified cardiologist specializing in internal medicine, echocardiography, nuclear cardiology, and cardiovascular diseases at Chinatown Cardiology, PC, in the Chinatown section of New York City and Brooklyn and Flushing, New York. Dr. Chen earned her undergraduate degree at the University of California, Berkeley. She then went on to complete her medical training at Albert Einstein College of Medicine in The Bronx, New York. She performed her residency at Mount Sinai Beth Israel and her fellowship at Lenox Hill Hospital. 

Dr. Chen only employs the latest technology to provide accurate diagnoses and up-to-date treatments. She utilizes cutting-edge imaging techniques to detect cardiovascular diseases. However, she is also skilled at using methods that have proven effective in the past, such as the exercise treadmill stress test, nuclear myocardial perfusion scans, and peripheral vascular duplex. Dr. Chen has received additional training as a vein specialist and performs radiofrequency ablation within the facility.  

Dr. Chen is committed to helping patients receive the care and attention they need. By combining the latest technology with her knowledge and pleasant demeanor, she can make patients feel confident that they are in the best care possible. To receive professional attention for any issue concerning the heart, make an appointment with Dr. Chen online or by phone today.

Dr. David Lau received his Medical Degree and PhD degree in Physiology and Biophysics from NYU School of Medicine.   He completed his entire clinical training in Internal Medicine, Cardiovascular Disease, and Clinical Cardiac Electrophysiology at Columbia University - Presbyterian Medical Center.   Dr. Lau specializes in general cardiology and is an expert at the diagnosis of electrophysiological disorders and management after pacemaker, defibrillator, and remote cardiac monitor implantation.   Dr. Lau has presented his research at national meetings and published extensively in the area of electrophysiology.   He has a particular interest in the management of syncope and palpitations.   Dr. Lau is multi-board certified in Internal Medicine, Echocardiography, Cardiovascular Diseases, and Clinical Cardiac Electrophysiology and is Registered in Vascular Interpretations.

Dr. Tung earned his Medical Degree from Loyola University Chicago Stritch School of Medicine. He completed his post-graduate training in Internal Medicine and Cardiology at North Shore- Long Island Jewish Medical Center. Dr. Tung is well-known for his sincere approach to patient care. He is an expert in all facets of non-invasive cardiology, including echocardiography, exercise treadmill stress test, nuclear myocardial perfusion scan, and peripheral vascular duplex (carotid, abdominal aorta, renal artery, and upper/lower extremity). Currently, he is the Medical Director of Nuclear Cardiology Imaging for our ICANL facility accreditation. Dr. Tung is board certified in Internal Medicine, Echocardiography, Nuclear Cardiology, Cardiovascular Diseases, and Cardiovascular CT.

Dr. Jacqueline Chan received her Medical Degree from New York Medical College.   She completed her Internal Medicine residency in addition to a chief resident year at the former St. Vincent’s Catholic Medical Center.   Dr. Chan began her Cardiovascular Disease fellowship at St.   Vincent’s Catholic Medical Center and transitioned to New York Methodist Hospital to complete her clinical training.   She is proficient in exercise treadmill stress test, echocardiography, nuclear myocardial perfusion scan, and peripheral vascular duplex.   Dr. Chan completed training as a vein specialist and performs radiofrequency venous ablation in our ambulatory procedure lab.  Currently, she is the Medical Director of Echocardiography and Vascular Imaging for our accredited ICAEL and ACR facility.  Dr. Chan is multi-board certified in Internal Medicine, Echocardiography, Nuclear Cardiology, and Cardiovascular Diseases.

Dr. Henry Siu earned his Medical Degree from the Sophie Davis School of Biomedical Education/SUNY Downstate Medical Center. He completed his post-graduated training in Internal Medicine at Yale New Haven Hospital, and Cardiology/Interventional Cardiology Fellowship at Thomas Jefferson University Hospital in Philadelphia. 

Dr. Siu has expertise in general cardiology, multi-modality cardiac imaging, and vascular imaging. As an interventional cardiologist, Dr. Siu is highly skilled in cardiac catheterizations and peripheral vascular interventions, and management of complex coronary/valvular heart disease. He has proven experience in private practice and in the academic setting, with focus on providing the highest quality care and most up-to-date diagnostic and treatment strategies. In his free time, Dr. Siu enjoys exercising and playing the piano. Dr. Siu speaks Cantonese, Mandarin, and English.

Michael Liou, MD, FACC, FSCAI, is a skilled, board certified interventional cardiologist practicing at Chinatown Cardiology P.C., which has locations in Flushing, Brooklyn, Chinatown, and the Upper West Side of Manhattan. 

Dr. Liou earned his medical degree from SUNY Stony Brook School of Medicine after completing the prestigious Sophie Davis Biomedical Education Program at CUNY City College. He completed his internship and residency in internal medicine at NYU Langone Medical Center and performed his fellowship training in cardiovascular disease at Beth Israel Medical Center (now known as Mount Sinai Beth Israel) and returned to NYU Langone Medical Center for his advanced interventional cardiology subspecialty fellowship. 

Although he provides care for all cardiovascular conditions, Dr. Liou’s clinical expertise is in performing transradial cardiac catheterization, peripheral endovascular intervention, percutaneous mitral & aortic valvuloplasty, and ASD/PFO closure. He continues to participate in clinical research with a special focus on cardiovascular diseases affecting Asian Americans. 

Dr. Liou is multi-board certified in cardiovascular diseases, echocardiography, nuclear cardiology, and interventional cardiology.

Arsalan Rehmani, MD, FACC is an Interventional and General Cardiologist at Chinatown Cardiology P.C. Dr. Rehmani completed his residency at BronxCare Health System followed by subspecialty fellowships in cardiology and interventional cardiology at Mount Sinai Morningside Hospital. He is board-certified in multiple subspecialties including Internal Medicine, Cardiovascular Disease, Interventional Cardiology, Adult Echocardiography, and Nuclear Cardiology.



Dr. Rehmani accepts new patients, and he currently provides consultations at various locations in New York City, including the Upper West Side and Chinatown in Manhattan, Queens, Brooklyn, and the Bronx. Dr. Rehmani is multilingual, being fluent in English, Urdu, Hindi, Russian, and Ukrainian.

Tak Kwan, MD, FAHA, FACC, FACP, FSCAI, is a board-certified and internationally renowned cardiologist at Chinatown Cardiology, PC, in the Chinatown and Upper West Side areas of New York City, Brooklyn and Flushing, New York. Chief of Cardiology, Lenox Hill Greenwich Village, Northwell Health, Director, Asian Practice Initiatives at Lenox Hill Hospital, Clinical Professor of Medicine/Cardiology, Zucker School of Medicine at Hofstra/Northwell, and President, Chinatown Cardiology, P.C. Dr. Kwan earned his medical degree and completed his residency at the State University of New York Downstate Medical Center. For the past 20 years, Dr. Kwan has been an active member within the Chinese community. He served as the president of the Chinese-American Medical Society. He then went on to establish Chinatown Cardiology in order to assist those in the neighborhood. Due to his generous donations and charitable services for the community, Dr. Kwan was awarded the Ellis Island Medal of Honor in 2010.

Dr. Kwan is now the interventional cardiology director at Mount Sinai West, the catheterization laboratory co-director at Mount Sinai Beth Israel, and the affiliate medical director of international services at Mount Sinai Health. He is affiliated with Mount Sinai Beth Israel, serving as a professor at the Icahn School of Medicine, the executive director of Asian services, and the site program director of interventional cardiology. Besides being directly involved in patient care, Dr. Kwan is also an active participant in clinical research.

Dr. Kwan is recognized internationally as an expert in general and interventional cardiology. Not only is he incredibly skilled, but he is also a pioneer in transradial cardiac catheterization, complex percutaneous coronary intervention, structural heart intervention, and transpedal lower extremity peripheral catheterization. Dr. Kwan is committed to providing only the best treatment available to his patients. Whether the patient is seeking treatment for routine heart disorders or is suffering from more complex symptoms, Dr. Kwan has the experience and skills necessary to ensure that the proper care and attention are provided to every patient at Chinatown Cardiology.

For a highly skilled and knowledgeable cardiologist, make an appointment with Dr. Kwan either online or by phone today.

Dr. Vinod Somareddy, PT, DPT, is the founder and president of Reddy Care Physical & Occupational Therapy with locations throughout New York in Farmingdale, Great Neck, North Shore Towers, Oceanside, Woodbury, Bayside, Deer Park, and Upper Westside of New York Cit. Started in 2003, Dr. Somareddy built his practice under the guiding principles of providing quality care that fosters a patient-centered culture committed to improving the lives of everyone who comes through the door. 

As the eldest son in the family, Dr. Somareddy decided to honor his father’s own dedication to patient care, naming his practice after him. Dr. Somareddy’s father, nicknamed “Reddy,” worked as a nurse at Long Island Jewish Medical Center, where he garnered a reputation for his knowledge, perseverance, and compassionate patient care. Dr. Somareddy knows his success stems from his father’s influence, and he built a team that puts the patient’s needs above all else.

Dr. Somareddy earned his degree at the State University of New York Upstate Medical University in Syracuse. Dedicated to his profession, he is an active member of the American Physical Therapy Association and participates in many educational programs, lecturing on clinical and administrative topics.

In his spare time. Dr. Somareddy enjoys playing sports and watching baseball, traveling, exercising, and broadening his skills in business management.

Henock Saint-Jacques, MD, FACC, is a distinguished cardiologist and head clinician at Harlem Cardiology on Madison Avenue in East Harlem of New York City. Dr. Saint-Jacques is held in high esteem throughout New York City and is a deservedly popular speaker at medical conferences and meetings. He also mentors medical students and postgraduate fellows.

Dr. Saint-Jacques studied for his medical degree at Universidad de Ciencias Medicas (UCIMED) in San Jose, Costa Rica. After graduating, he relocated to New York City for a residency in internal medicine at Cabrini Medical Center, which he completed in 1998, followed by a fellowship in cardiology at the Montreal Heart Institute in Canada. After completing his fellowship in 2001, Dr. Saint-Jacques studied at Duke University School of Medicine in Durham, North Carolina, and achieved cardiovascular disease certification with the American Board of Internal Medicine in 2003.

Dr. Saint-Jacques is a Fellow of the American College of Cardiology, a distinction that recognizes members who have achieved exceptional standards of professional excellence and made a significant contribution to the field of cardiovascular medicine.

Preview Dr. Saint-Jacques Doximity Profile HERE. 

Ahmadur Rahman is a detailed and thorough physician specializing in internal medicine and primary care. Dr. Rahman is serving his patients in Manahattan, NY and Jamaica, NY with his two private practices. He is certified by the American Board of Internal Medicine. 

Dr. Rahman received his doctorate degree from the Ross University School of Medicine. He then completed his Internal Medicine residency at the Newark Beth Israel Medical Center. Dr. Rahman welcomes patients to his practice who are experiencing issues such as acne, bunions, arthritis, asthma, ear infections, and diabetes. With his informative bedside manner, Dr. Rahman works to a solution for improved health and healing. Dr. Rahman provides services for his patients that include annual physicals, ECG/EKG, bone density measurements, and annual skin screenings, among many others. 

Dr. Rahman enjoys participating in outdoor activities, when time permits. He enjoys spending time with his family, photography, and traveling.

Igor Chernyavskiy, MD, is a top-ranked pulmonologist and sleep medicine specialist providing patients in Brooklyn, NY 11235 with one of the best and unparalleled levels of care for an array of acute and chronic lung conditions and diseases and sleep disorders.

Dr. Chernyavskiy earned his medical degree at Krasnoyarsk State Medical University in Russia, followed by a residency in internal medicine at Monmouth Medical Center in Long Branch, NJ, and a fellowship in pulmonary care at the State University of New York (SUNY), Stony Brook.

He maintains active memberships in many medical societies including the American Academy of Sleep Medicine, the American Thoracic Society, and the American Medical Association, and is board-certified by the American Board of Sleep Medicine and by the American Board of Internal Medicine in critical care, pulmonary disease, and sleep medicine. In addition to seeing patients at his private practice, Dr. Chernyavskiy maintains hospital affiliations with Stony Brook University Medical Center and the VA Medical Center in Northport.

Dr. Chernyavskiy welcomes new patients and accepts most major insurance plans. He speaks both English and Russian.

Dr. Roy is an experienced osteopathic physician at Jersey Integrative Health and Wellness, with training in Internal Medicine and Neuromuscular Medicine. He focuses his treatment towards sports medicine, musculoskeletal and automobile injuries, and degenerative diseases.

Dr. Roy focuses on holistic care and understands how pain can affect multiple facets of a patient's life, particularly because he has been a patient himself. He focuses on osteopathic manipulation therapy as he understands that many patients prefer natural, holistic treatments over addictive pain medications and invasive surgery. Dr. Roy is currently accepting new patients and warmly welcomes them to Jersey Integrative Health and Wellness.

About The Practice

Vantage Medical Associates, P.C. is a multispecialty group practice that partners with every patient to provide comprehensive, lifelong internal medicine care. The practice has locations in the Bergen Beach, Coney Island, Williamsburg, and Sheepshead Bay neighborhoods in Brooklyn, the Far Rockaway neighborhood in Queens, and Brentwood and Babylon, New York, and is made up of a team of highly skilled physicians and clinical staff dedicated to offering the highest quality services to all patients.

The practice improves your overall health and quality of life by combining the latest advances in evidence-based medicine with compassionate, patient-centered care and cutting-edge information technology. Vantage Medical Associates PC offers complete care for women’s health, gastroenterology, podiatry, and chronic disease management for conditions like hypertension (high blood pressure).

Those with persistent conditions like lower back pain and fibromyalgia benefit from pain management services and physical therapy.

Convenient in-office imaging and diagnostic testing, as well as services for neurology, cardiology, and urology, are also available. Telehealth and home visits provide patients who have trouble getting to the office with a trouble-free way to see their provider.

Get all the care you need at one practice. Call Vantage Medical Associates, P.C. today to learn more or use the online tool to request information.

Adam Moskowitz, MD, is an experienced physician at Vantage Medical Associates PC, which has locations in the Bergen Beach, Coney Island, Williamsburg, and Sheepshead Bay neighborhoods in Brooklyn, the Far Rockaway neighborhood in Queens, and Brentwood and Babylon, New York. Dr. Moskowitz has been in practice for over two decades and has extensive experience in family medicine, internal medicine, and gastroenterology. He currently has hospital privileges at Champlain Valley Physicians Hospital, Wyckoff Heights Medical Center, and New York Community Hospital of Brooklyn.

Dr. Moskowitz graduated from Brandeis University in Waltham, Massachusetts, with his bachelor’s degree. He then completed continuing education courses at Hofstra University in Hempstead, New York, before graduating with his medical degree at Sackler School of Medicine at Tel Aviv University in Tel Aviv, Israel. He completed a psychiatry residency at Long Island Jewish Medical Center, New Hyde Park, New York, as well as a residency in internal medicine and fellowship in gastroenterology at Winthrop University Hospital in Mineola, New York.

He is a member of several professional organizations, including the American Gastroenterological Association, New York Society for Gastrointestinal Endoscopy, American College of Physicians, and American Society for Gastrointestinal Endoscopy. 

Karthik Gujja, MD, MPH, is a board-certified physician specializing in general cardiology, interventional cardiology, and endovascular intervention. He currently treats patients at Long Island Heart&Vascular Specialist offices located in Bronx, Long Island, Queens, and Brooklyn. He is the Associate Director for Endovascular program at Mount Sinai Hospital.

Dr. Gujja graduated from India’s Mahadevappa Rampure Medical College in Gulbarga, Karnataka, in 2003. He later completed an internal medicine internship at Long Island College Hospital in Long Island, New York, as well as fellowships in cardiology and interventional cardiology at Beth Israel Medical Center in New York. In addition to this comprehensive training, Dr. Gujja completed a third fellowship in endovascular intervention/peripheral at Mount Sinai Hospital in New York.

Highly skilled and educated, Dr. Gujja strives to provide his patients with the best possible care as a longtime cardiovascular disease specialist. Dr. Gujja has undergone extensive training to treat cardiovascular-related conditions, such as art failure, heart attack, congenital heart problems, and coronary artery diseases.

Dr. Gujja is also a renowned endovascular intervention specialist, offering low-risk alternatives to open surgery. He has been treating patients with peripheral artery disease (PAD) for many years and continues to improve their quality of life through minimally invasive procedures, lifestyle changes, and medications. These new treatments can help patients take control of their PAD symptoms, such as swollen legs and leg pain, allowing them to return to their regular activities.

At Long Island Heart & Vascular, Dr. Gujja is able to offer his patients the most advanced cardiovascular and endovascular intervention testing and treatments under one roof, making each visit as comfortable and convenient as possible.

Book Publications

1. Below the Knee Interventions (Critical Limb Ischemia). Karthik Gujja- Interventional Cardiology: Principles and Practice, 2016 – Wiley / Blackwell – Second Edition
2. Popliteal Artery Interventions. Karthik Gujja- Interventional Cardiology: Principles and Practice, 2016 – Wiley / Blackwell – Second Edition
3. Chronic Venous Insufficiency. Karthik Gujja- Interventional Cardiology: Principles and Practice, 2016 – Wiley / Blackwell – Second Edition
4. Chronic Venous Insufficiency. Karthik Gujja - Interventional Cardiology Clinics, 2014 – Elsevier.
5. Acute Limb Ischemia. Karthik Gujja- Interventional Cardiology Clinics, 2014 - Elsevier
6. Efficacy and Safety of Bare Metal and Drug-Eluting Stents. Karthik Gujja, MD, Amar Narula, MD, Gregg W. Stone, MD and Ajay J. Kirtane, MD. Coronary Stenting: A Companion to Topol's Textbook of Interventional Cardiology. Published year 2014
7. Prosthetic heart valves. Karthik Gujja, MD. Practical Manual of Echocardiography in the Urgent Setting. Published year 2013.

Research

1. Intravascular ultrasound guided directional atherectomy versus directional atherectomy guided by angiography for the treatment of femoropopliteal in-stent restenosis. Ther Adv Cardiovasc Dis. 2018 Jan;12(1):17-22
2. An Algorithm for the Use of Embolic Protection During Atherectomy for Femoral Popliteal Lesions. JACC Cardiovasc Interv. 2017 Feb 27;10(4):403-410.
3. Intravascular Ultrasound Is an Effective Tool for Predicting Histopathology-Confirmed Evidence of Adventitial Injury Following Directional Atherectomy for the Treatment of Peripheral Artery Disease. J Endovasc Ther. 2016 Aug; 23(4):672-3.
4. Histopathological Evidence of Adventitial or Medial Injury Is a Strong Predictor of Restenosis During Directional Atherectomy for Peripheral Artery Disease. J Endovasc Ther. 2015 Oct;22(5):712-5.
5. Bifurcation stenting in patients with ST-segment elevation myocardial infarction: an analysis from dkcrush II randomized study. Catheter Cardiovasc Interv. 2013 Sep 1;82(3):E133-7.
6. The Incidence Of Procedural Difficulty In Transradial Coronary Angiography (Research Study).  Journal of American College of Cardiology (JACC), 2011; 57:1876
7. Significance of Heart Rate Variability, Ventricular Arrhythmic Burden and a Novel Non-Invasive Marker Score in Heart Failure Patients with Preserved Ejection Fraction  Prognostic Journal of Cardiac Failure. 2009 Aug; 15(6): S61

Dr. Rafael A. Guillén is an internist in the Bronx, in New York City. As the physician at R. Guillén MD PC, Dr. Guillén offers a wide range of care including allergy care, help with obesity, hepatitis care, diabetes care, cholesterol management, high blood pressure treatment, asthma treatment, and arthritis treatment. R. Guillen MD PC is a Patient-Centered Medical Home, recognized by the National Committee for Quality Assurance for providing coordinated, advanced primary care, ensuring that patients are put in the forefront of their care, and a commitment made for continuous quality improvement. Dr. Guillén offers comprehensive health care for adults in the Bronx area. He’s bilingual in English and Spanish and has also carefully chosen a multi-lingual staff for the convenience of his patients.

Dr. Guillén attended the University Eugenio Maria de Hostos School of Medicine in the Dominican Republic. He completed his residency in Internal Medicine at the Bronx-Lebanon Hospital Center in the Bronx, New York. Dr. Guillén is a Diplomate of the American Board of Internal Medicine, and a Fellow of the American College of Physicians. He is an active member of numerous medical organizations, including the American Medical Association, the American College of Physicians, and the Dominican College of Physicians.

Dr. Guillén and his team look forward to seeing new patients and established patients alike. Contact the office anytime to arrange an appointment.

Prashanth Mannam, MD, has over 20 years of experience as an internist and primary care provider. He offers patient-focused care to patients aged 12 and older at Mannam Medical & Wellness in the Soundview neighborhood of The Bronx in New York City. 

Dr. Mannam completed his training in medicine in Madras, India. He earned his medical degree at the Madras Medical College and served his internship at the Madras Medical College General Hospital. 

After spending a year honing his skills as a primary care physician at Kommalapati Nursing Home in Ongole, India, he moved to the United States, where he completed his internal medicine residency at New York’s Montefiore North Medical Center in The Bronx. He has since become a member of the American Medical Association and is board-certified in internal medicine.

Dr. Mannam commits himself to provide personalized medical care to his community. He speaks several languages fluently: English, Spanish, Hindi, Tamil, and Telugu. Dr. Mannam takes his time with each patient, never rushing anyone, and answering questions thoroughly. 

Outside of his practice, Dr. Mannam stays active by playing racquetball and tennis. He also enjoys world music and reading.