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Dr. Benjamin Barrah, M.D. is a Brooklyn internal medicine specialist serving the New York area. His practice provides a broad variety of services, including vaccinations and treatments for ailments such as hepatitis C, allergy testing and treatment, erectile dysfunction, cosmetic surgery, and immigration medical exams.

Dr. Barrah earned his medical degree from the University of Benin School of Medicine and studied clinical dermatology at the University of London, after serving time as a dermatology house officer. Next, he attended the University of Miami School of Medicine, where he served as a graduate education special trainee fellow in the field of dermatology and cutaneous surgery. He went on to complete his residency in internal medicine at the Woodhull Medical and Mental Health Center in New York.

Dr. Barrah is board-certified and provides a range of medical, skin, and aesthetic services, while also educating new health care professionals. He specializes as an internist and dermatologist and holds professional memberships in the American College of Physicians and American Academy of Aesthetic Medicine. He is affiliated with both the Interfaith Medical Center and the New York Methodist Hospital and is fluent in English, French, and Spanish.

Dr. Barrah is eager to welcome new patients to his practice, whether they need basic acne treatment, care for chronic illnesses, or to complete an immigration medical exam to gain permanent residency in the United States. Whatever the medical needs may be, Dr. Barrah will provide the ideal treatment and do so in a caring and compassionate bedside manner while delivering the best possible care.

If patients are in need of medical services in the Brooklyn area, give Dr. Barrah’s office a call to schedule an appointment during office hours today. The team at Fulton Medical Plaza are looking forward to helping.

Dr. William Martin is a top-rated internist and primary care physician serving patients from Midtown Manhattan and throughout the Greater New York City metro region. As a skilled and compassionate physician, Dr. Martin is skilled in the diagnosis and treatment of a wide array of conditions, including sinusitis, bronchitis, asthma, diabetes, urinary tract infections, high cholesterol and high blood pressure, chronic fatigue, migraines, eczema, psoriasis, colds and other respiratory infections, back pain, anxiety and depression, and thyroid disorders.

Dr. Martin received his medical degree from the University of Vermont after receiving a bachelor's degree in chemistry from the same institution, and completed his residency in internal medicine at St. Lukes-Roosevelt Hospital in New York City. As a leading physician dedicated to the needs of his patients, Dr. Martin maintains active memberships in several medical associations and is a diplomate of the American Board of Internal Medicine.

Dr. Martin is a strong proponent of patient-centered care and patient education, ensuring each patient he treats receives the most appropriate care and treatment based on an in-depth evaluation of the patient's unique needs, medical history and current health status. During office visits, every patient receives the information they need to understand the medical issues they face, including existing and emerging disease risk factors, and the treatment options that are available to them so they can make confident and informed decisions about their care.

Dr. Martin enjoys meeting new patients at his practice on East 54^th Street, and the practice accepts most major forms of medical insurance plans.

Jeffrey Crespin, MD

Jeffrey Crespin, MD, has been a practicing gastroenterologist in Manhattan for more than 20 years and has convenient office locations across New York City in the Upper East Side, Midtown East, and Midtown West. As a board-certified gastroenterologist, Dr. Crespin strives to provide the highest quality medical care in a compassionate, professional, and personalized manner.

Dr. Crespin graduated cum laude from Harvard University with a bachelor’s degree in biology. After spending a year studying cinema, psychology, and literature at the Sorbonne in France, Dr. Crespin attended Washington University School of Medicine in St. Louis, Missouri, where he graduated with his medical degree. He then completed his internship and residency training through the University of Minnesota before rounding out his training with a fellowship in gastroenterology at Northwestern Memorial Hospital in Chicago, Illinois. In addition to his medical education and training, Dr. Crespin has a Master of Business Administration from the New York University (NYU) Stern School of Business.

Before opening up his private practice, Dr. Crespin served as the director of the Columbia-St. Luke's Roosevelt GI clinic. He is expertly trained in endoscopic procedures, which allows for direct visualization of the intestinal tract for optimal diagnosis, treatment, and prevention of gastrointestinal diseases such as irritable bowel syndrome, Crohn’s disease, and colitis. To ensure his patients have access to the best care possible, Dr. Crespin conveniently offers same-day, late-hour, and weekend appointments.

Recognized as one of New York’s “Top Doctors,” Dr. Crespin is affiliated with NYU Lenox Hill Hospital, St. Luke's Roosevelt, and the Beth Israel hospitals. He is also a clinical assistant professor of medicine at NYU.

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. 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.

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.

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.

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. 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.

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.

Dr. Michael Aziz is a physician, author, and broadcast media commentator. He is Board Certified in Internal Medicine. He is an attending physician at Lenox Hill Hospital. Dr. Aziz completed his training at "Long Island Jewish Medical Center," and "Staten Island University Hospital." Dr. Aziz is a member of the American College of Physicians and the American Society of Internal Medicine. He is also a fellow of the Royal Society of Medicine in the United Kingdom. Dr. Aziz has appeared as a keynote speaker before many prestigious groups nationally and internationally such as the American Academy of Anti-Aging Medicine.

Dr. Aziz is the founder of the practice that focuses on traditional and  functional Medicine (treating the root cause of disease). In his first book, The Perfect 10 Diet, Dr. Aziz details his disappointment to see many outdated guidelines preached by various medical organizations. Many research studies demonstrated the danger of low-fat diets and synthetic hormones. Dr. Aziz had to find his own way to improve his health and his patients, hence, his interest in natural remedies, peptides, bio-identical hormones. Dr Aziz retrained with the the American Academy of Anti-aging in Functional Medicine. Dr. Aziz authored "The Perfect 10 Diet." A diet that encourages full-fat products from butter to whole milk. It was in sharp contrast to the low-fat diet dogma. The Perfect 10 Diet was also different from both low-carb and keto diets as it didn't allow any chemicals such as nitrites or artifical sweeteners, not just sugar. 

The Perfect 10 Diet helped thousands of his patients live better and improve their health. His patients dropped tons of weight, normalized their blood pressure, and improved their cholesterol naturally. He was compelled to get the message out to the masses in a book. The Perfect 10 Diet which started in the office as pamphlets was now a book in the spotlight. The Perfect 10 Diet and Dr. Michael Aziz were featured on the cover of "First for Women," one of the largest distributed magazines in the United States. The Perfect 10 Diet went on to become a national bestseller. The Perfect 10 Diet hit the number one spot on Barnes and Noble in 2010. In 2011, The Perfect 10 Diet hit the number one spot on Amazon for twelve consecutive weeks. The Perfect 10 Diet was translated into many languages including; Italian, Chinese, Mandarin, Slovenian, Urdu, Malay, and Indonesian. Dr. Aziz and The Perfect 10 Diet were featured on countless TV shows including "The View," "The Doctors," "Fox and Friends", and "Dr. Oz."

in 2024 and after a long hiatus, Dr. Aziz authored his second book The Ageless Revolution. It was the Covid-19 pandemic that showed him our vulnerability  as a nation with higher deaths rates compared to other nations that weathered the pandemic better. Dr Aziz says  "As Americans we are leaving two decades on the table that we can live in great health." The Ageless Revolution" is a book that promotes anti-aging, great health, and longevity through; diet, lifestyle, supplements, medications, and peptides. The book has been picked by (HCI publishing house/Simon and Schuster)  and is due for release in January 2025. The Ageless Revolution is available now for presale on Amazon, and all majors book retail websites. 

Dr Aziz is a prolific medical contributor to Life Extension Magazine. He has also been a contributor to The Boardroom Newsletters which reached over 7 million subscribers with health advice before the Covid-19 pandemic. Dr. Aziz's columns, articles, and opinions have been published in the LA Times, CNN, Washington Post, WebMD, NY Post, the Daily News, as well as in many magazines internationally such as Paris Match.

Dr. Aziz regularly provides medical commentary on many health networks, including NPR, Fox and Friends, ABC, WGN Chicago, NBC, Telemundo, and Dubai TV. Dr. Aziz is passionate about philanthropy. He has volunteered to help New Yorkers during the Covid-19 pandemic, and has volunteered in underserved rural areas in Indonesia.

Jeffrey Crespin, MD

Jeffrey Crespin, MD, has been a practicing gastroenterologist in Manhattan for more than 20 years and has convenient office locations across New York City in the Upper East Side, Midtown East, and Midtown West. As a board-certified gastroenterologist, Dr. Crespin strives to provide the highest quality medical care in a compassionate, professional, and personalized manner.

Dr. Crespin graduated cum laude from Harvard University with a bachelor’s degree in biology. After spending a year studying cinema, psychology, and literature at the Sorbonne in France, Dr. Crespin attended Washington University School of Medicine in St. Louis, Missouri, where he graduated with his medical degree. He then completed his internship and residency training through the University of Minnesota before rounding out his training with a fellowship in gastroenterology at Northwestern Memorial Hospital in Chicago, Illinois. In addition to his medical education and training, Dr. Crespin has a Master of Business Administration from the New York University (NYU) Stern School of Business.

Before opening up his private practice, Dr. Crespin served as the director of the Columbia-St. Luke's Roosevelt GI clinic. He is expertly trained in endoscopic procedures, which allows for direct visualization of the intestinal tract for optimal diagnosis, treatment, and prevention of gastrointestinal diseases such as irritable bowel syndrome, Crohn’s disease, and colitis. To ensure his patients have access to the best care possible, Dr. Crespin conveniently offers same-day, late-hour, and weekend appointments.

Recognized as one of New York’s “Top Doctors,” Dr. Crespin is affiliated with NYU Lenox Hill Hospital, St. Luke's Roosevelt, and the Beth Israel hospitals. He is also a clinical assistant professor of medicine at NYU.

Dr. David Harnick is a board-certified cardiologist and electrophysiologist who provides exceptional cardiovascular care at Heartwise Cardiology in the Murray Hill and Upper East Side neighborhoods of New York City.

While he treats the full range of heart conditions, he specializes in helping patients with cardiac arrhythmias, dizziness, and syncope. He specializes in implanting cardiac devices such as pacemakers and defibrillators, and he is an expert in performing a full range of cardiac ablations.

He has been placing Implantable Loop Recorders (ILRs) in the convenience of his office as a quick, safe, and easy procedure to help diagnose and treat arrhythmias.

Dr. Harnick received his undergraduate degree from Rutgers University in New Jersey, where he graduated summa cum laude as a Henry Rutgers Scholar Award recipient. He then graduated with his Doctor of Medicine from the Icahn School of Medicine at Mount Sinai in New York City.

During his second year in medical school, he was awarded a research scholarship from the Howard Hughes Medical Institute Investigator Program. He successfully cloned the first calcium channel in human T-cells, which contributed to understanding the mechanisms involved in cellular signaling. After completing his internal medicine residency at Columbia University Irving Medical Center in New York City, Dr. Harnick returned to Mount Sinai to pursue advanced training in general cardiology and cardiac electrophysiology.

In addition to being named to the New York Times Super Doctors of New York, Dr. Harnick has also been featured in Castle Connolly Best Physicians. He often lectures medical professionals on atrial fibrillation and anticoagulation management and stays involved in clinical trials on multiple studies from cardiac devices to new pharmacologic agents.

Dr. Harnick is affiliated with two prestigious New York City hospitals -  The Mount Sinai Medical Center and Lenox Hill Hospital. He serves as an assistant clinical professor at Mount Sinai Medical Center and a clinical instructor at Lenox Hill, where he is involved in regular teaching of cardiology fellows.

Dr. Harnick welcomes the opportunity to help new and existing patients achieve optimal heart health. 

Dr. Raymonda Rastegar is a triple-boarded cardiologist with certifications in general cardiology, echocardiography, and nuclear cardiology. She has expertise in general and noninvasive cardiology, as well as preventive care. At Heartwise Cardiology in the Murray Hill neighborhood of Manhattan, New York, she treats varied cardiovascular conditions with a special interest in helping patients prevent heart disease and heart attacks. 

With board certification in echocardiography and nuclear cardiology, she offers extensive in-office testing to quickly and accurately diagnose cardiovascular conditions, such as coronary artery disease and valvular heart disease. 

Dr. Rastegar received her medical degree from the Icahn School of Medicine at Mount Sinai in New York City. She remained at Mount Sinai for her residency and fellowship training in cardiovascular diseases. 

After completing her fellowship, Dr. Rastegar became co-director of echocardiography and noninvasive cardiology at Beth Israel Medical Center-North Division in New York City. Then she established her private practice, where she is currently the co-director of Heartwise Cardiology.

Dr. Rastegar is affiliated with two prestigious institutions in NY City - New York University Langone Medical Center and the Mount Sinai Medical Center. Dr. Rastegar continues her academic endeavors by teaching medical students and residents at these medical centers.

She stays on the cutting edge of cardiology with her involvement in clinical research studies, including dyslipidemia and coronary artery disease. She is an active speaker and lecturer on these topics.

Dr. Rastegar is honored to be named the New York Times Super Doctors of New York and NY Top Docs best doctors. Dr. Rastegar prides herself on providing personalized and thorough care. She looks forward to working one-on-one with new and existing patients whether they want to prevent heart disease or need exceptional care for existing conditions.

Dr. Saltzman realized a calling to medicine during the height of the HIV/AIDS crisis in New York City in the mid-eighties.  Prior to entering the field of medicine Dr. Saltzman worked in the music business for record companies and publishers. Moving in the NYC club scene of the nineties, Dr. Saltzman saw many of her friends and colleagues become ill with AIDS.  She observed the rampant prejudice and stigma that LGBTQ people and IV drug users suffered, and committed herself to becoming a physician specializing in HIV/AIDS.

Despite not having a background in the sciences Dr. Saltzman was able to earn admission to medical school, while supporting herself as a single parent.  After medical school, she chose to do her residency at St. Vincent’s Hospital in New York City, which was at the forefront of providing specialized treatment for patients with HIV/AIDS.  After completing her residency, she practiced at the Samuels Clinic at Roosevelt Hospital (now The Institute for Advanced Medicine at Mount Sinai), a major outpatient center for patients during the epidemic.  While practicing at the Samuels Clinic, Dr. Saltzman was an early prescriber of the “triple cocktail”, the first effective combination therapy for HIV.

Dr. Saltzman’s interest in addiction was born out of her experience providing care for HIV/AIDS patients who were often IV drug users. She was one of the first physicians in New York City to embrace the use of Suboxone, a novel medication for the treatment of opiate addiction, that allows patients to access treatment without daily clinic visits as is the case with methadone therapy.  Suboxone was one of the first therapies approved for in-office prescribing under the federal Drug Addiction Treatment Act of 2000. By prescribing Suboxone on an outpatient basis Dr. Saltzman is able to help patients get back to their work and family, and functioning at a high level.

Dr. Saltzman founded her busy Midtown Health and Wellness Center in 2000.  She focuses on providing individualized care, realizing that patients need more than the standardized approach for addiction treatment.  Dr. Saltzman provides guidance through all stages of recovery, supporting patients with primary care, individual and group therapy. She feels addiction is treated incorrectly in many settings with a focus on simply handing out prescriptions, instead of a more comprehensive approach.
Dr. Saltzman is a well-known expert in the field of addiction and regularly expresses her views on television, radio, and in the press.  She uses warmth and humor to engage with her patients. She understands where they’re coming from and does not judge them, using empathy and compassion to deliver the most appropriate individualized treatment options.