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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. Michael Aziz is a board-certified Internal Medicine physician, author, and a broadcast media commentator. He serves as an attending physician at Lenox Hill Hospital in New York City. Dr. Aziz completed his medical training at Long Island Jewish Medical Center and Staten Island University Hospital. He is a member of the American College of Physicians,  the American Society of Internal Medicine, and a fellow of the Royal Society of Medicine in the United Kingdom. Dr. Aziz has also been a keynote speaker at numerous national and international conferences, including those organized by the American Academy of Anti-Aging Medicine.

As the founder of the practice that integrates traditional and functional medicine, Dr. Aziz focuses on addressing  the root causes of diseases. He is the author of "The Perfect Diet," a book that challenges outdated dietary guidelines, and advocates a balanced diet including full-fat products. The Perfect 10 Diet is also different from both low-carb and keto diets since it is balanced and it does not allow any chemicals such as nitrites since they are linked to many types of cancer.  

Upon release, The Perfect 10 Diet and Dr. Michael Aziz were featured on ABC's billboard in Times Square in NYC. He also made it on the cover of "First for Women," one of the largest magazines in the United States. The Perfect 10 Diet went on to become a national bestseller. The Perfect 10 Diet hit the number one book sold and downloaded on Amazon for 12 consecutive weeks. The Perfect 10 Diet was translated into several foreign 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 2025, Dr. Aziz released "The Ageless Revolution,' a book that addresses aging as a disease by targeting its underlying causes. Motivated by the high mortality rates in the US during the COVID-19 pandemic, he emphasizes the need for proactive health measures to increase lifespan. His approach integrates traditional and functional medicine aiming to treat the root causes of diseases rather than the sypmtoms. The book was an immediate bestseller upon release, hitting the number one spot on Amazon in the longevity category. It has also been picked up internationally to be translated into several foreign languages.

Dr Aziz is a prolific medical contributor to Life Extension Magazine with the "Ask the Doctor"column. He has also been a medical contributor to The Boardroom Newsletters which reached over 7 million subscribers with health advice. Dr. Aziz's columns, articles, and opinions have been published in The LA Times, CNN.com, Fox.com, The Washington Post, WebMD, The NY Post, the Daily News,  as well as in many publications internationally such as The Daily Mail, in the UK, and Paris Match, in France. 

Dr. Aziz regularly provides medical commentary on many health networks, including NPR, Fox, 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 rural islands in Indonesia. He is also donating the proceeds of The Ageless Revolution to help women affected by breast cancer. 

Dr. Sheremet Gashi, M.D., is a top-ranked internist in Bergen County, NJ, offering state-of-the-art care for men and women in Rutherford. As an internist, Dr. Gashi is skilled in providing the most effective and most appropriate treatments for adult patients, including treatments for diabetes, asthma, high cholesterol, sleep apnea and other sleep problems and sleep disorders, vitamin deficiency issues, depression, and anxiety. In addition, he offers a comprehensive array of women's health services as well as obesity and weight management programs.

Dr. Gashi completed his medical degree at the University of Prishtina, Faculty of Medicine, Kosovo, followed by an internship at New Jersey Medical School and a residency at the University of Medicine and Dentistry of New Jersey. He maintains active memberships in several medical associations, and he speaks Albanian and Croatian in addition to English.

Dr. Gashi is dedicated to providing individualized care focused on the unique needs of each patient. The practice welcomes new patients and accepts most major medical insurance plans.

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.

Dr. Ijaz Ahmad, M.D., F.A.C.C., is an experienced cardiologist, skilled in the diagnosis and treatment of an array of heart-related diseases and conditions in patients from Park Slope and throughout Brooklyn, NY. At Park Slope Cardiac and Diagnostic, Dr. Ahmad offers patient-centered care for issues like congestive heart failure (CHF), coronary artery disease (CAD), peripheral vascular disease (PVD and PAD) and chest pain. With advanced training in cardiac diagnostic imaging, Dr. Ahmad is skilled in performing echocardiograms, nuclear stress testing and ultrasounds, as well as cardiac catheterization and other minimally-invasive procedures.

A fellow of the American College of Cardiology (F.A.C.C.), Dr. Ahmad specializes in non-invasive and minimally-invasive cardiology to help patients get the care they need while avoiding surgery whenever possible. He and his team at Park Slope Cardiac and Diagnostic are committed to providing the highest quality care throughout every phase of treatment. Patients receive compassionate, customized care focused on their needs and based on in-depth evaluations using state-of-the-art testing and diagnostic techniques and technology for long-term health and wellness. With an emphasis on prevention and education, Dr. Ahmad helps patients understand their medical issues and risks, providing them with the education they need to enjoy better health and a better quality of life.

Dr. Ahmad completed his medical degree at Allama Iqbal Medical College, followed by a residency and internship at Interfaith Medical Center and a fellowship in cardiovascular diseases at New York Methodist Hospital. Widely published in top medical journals, including the International Journal of Cardiovascular Diseases and the Journal of Nuclear Cardiology, Dr. Ahmad was awarded the New York’s Top Doctors Award in 2016. Certified in nuclear cardiology by the American Society of Nuclear Cardiology (ASNC) and echocardiography by the National Board of Echocardiography (NBE), Dr. Ahmad maintains active memberships in several professional societies, including the American College of Cardiology, the American Society of Echocardiography, the American Society of Nuclear Cardiology and the American College of Physicians.

Park Slope Cardiac and Diagnostic welcomes new patients and accepts most major insurance plans. Dr. Ahmad speaks both English and Hindi.

{{identity.name}} is a full-service infusion center serving the Brownsville and Downtown Brooklyn in New York City, New York. As more and more people experience all that infusion therapy has to offer and make these treatments part of their ongoing health and wellness routines, the team at {{identity.name}} is here to assist, providing medically backed guidance and top-quality care. 

Infusion therapy is also sometimes referred to as IV nutrition therapy, IV hydration therapy, or a liquid vitamin drip. All of these names refer to treatments administered intravenously (IV) using a needle and thin medical tubing. The other end of the tubing connects to a bag that contains a mix of saline and custom-blended nutrients. 

Infusion therapy can enhance many essential functions, like immune support and athletic recovery. Treatments are a wonderful and natural way to address issues like fatigue, migraine pain, and nausea. Weight loss is another process that benefits from IV vitamin therapy.

At {{identity.name}}, medical professionals perform all infusion treatments. This reduces the risk of infection or other negative outcomes and ensures patients receive the medical guidance needed to make informed decisions about their care. 

The best way to explore all that {{identity.name}} has to offer is by booking a one-on-one consultation. The office can be reached by phone during normal business hours or online at any time of day.

{{identity.name}} is a full-service infusion center serving the Brownsville and Downtown Brooklyn in New York City, New York. As more and more people experience all that infusion therapy has to offer and make these treatments part of their ongoing health and wellness routines, the team at {{identity.name}} is here to assist, providing medically backed guidance and top-quality care. 

Infusion therapy is also sometimes referred to as IV nutrition therapy, IV hydration therapy, or a liquid vitamin drip. All of these names refer to treatments administered intravenously (IV) using a needle and thin medical tubing. The other end of the tubing connects to a bag that contains a mix of saline and custom-blended nutrients. 

Infusion therapy can enhance many essential functions, like immune support and athletic recovery. Treatments are a wonderful and natural way to address issues like fatigue, migraine pain, and nausea. Weight loss is another process that benefits from IV vitamin therapy.

At {{identity.name}}, medical professionals perform all infusion treatments. This reduces the risk of infection or other negative outcomes and ensures patients receive the medical guidance needed to make informed decisions about their care. 

The best way to explore all that {{identity.name}} has to offer is by booking a one-on-one consultation. The office can be reached by phone during normal business hours or online at any time of day.

{{identity.name}} is a full-service infusion center serving the Brownsville and Downtown Brooklyn in New York City, New York. As more and more people experience all that infusion therapy has to offer and make these treatments part of their ongoing health and wellness routines, the team at {{identity.name}} is here to assist, providing medically backed guidance and top-quality care. 

Infusion therapy is also sometimes referred to as IV nutrition therapy, IV hydration therapy, or a liquid vitamin drip. All of these names refer to treatments administered intravenously (IV) using a needle and thin medical tubing. The other end of the tubing connects to a bag that contains a mix of saline and custom-blended nutrients. 

Infusion therapy can enhance many essential functions, like immune support and athletic recovery. Treatments are a wonderful and natural way to address issues like fatigue, migraine pain, and nausea. Weight loss is another process that benefits from IV vitamin therapy.

At {{identity.name}}, medical professionals perform all infusion treatments. This reduces the risk of infection or other negative outcomes and ensures patients receive the medical guidance needed to make informed decisions about their care. 

The best way to explore all that {{identity.name}} has to offer is by booking a one-on-one consultation. The office can be reached by phone during normal business hours or online at any time of day.

Elizabeth Sharp Edens, M.D., DABOM, IFMCP is a board-certified Internal Medicine and Obesity Medicine Physician, Institute for Functional Medicine Certified Practitioner and the founder of Health Meets Wellness. Dr. Sharp started Health Meets Wellness to make functional medicine more accessible, combining her expertise in healthcare with physical activity, specifically yoga. Dr. Sharp completed her 200-hour yoga teacher training and believes in combining daily movement practices with medicine to help treat her patients. She is dedicated to helping her patients reach their wellness goals and developed the Health Meet Wellness method with Troy Flanagan, Ph.D. and Susie Parker-Simmons, RDN, specifically to help patients with weight management. 

In addition to her innovative practice, she is an Assistant Professor at Mount Sinai Hospital. She graduated medical school Magna Cum Laude from St. George’s University and completed her residency in Manhattan at Lenox Hill Hospital. After residency, she worked for Mount Sinai Doctors where she was awarded the Cullman Family Award for Excellence in Physician Communication and worked at OneMedical. Through her education and real-life experience, Sharp uncovered that taking a functional medicine approach helps diagnose and treat the root cause of her patient’s symptoms and disease processes. Her patient-centered style of practice combines diet and lifestyle with medicine to deliver multifaceted, holistic care for her patients. When she's not seeing patients she enjoys cooking, hiking, rock climbing , running, yoga and spending time with her friends and family.

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Peggy Elango, DO, is a primary care physician serving patients in the New York City area. At her practice in the Lenox Hill area of Manhattan, she provides a wide range of internal and concierge medicine services.

Dr. Elango attended Michigan State University, where she received her medical degree. She is board certified by the American Osteopathic Board of Internal Medicine and is a member of the American Osteopathic Association. She speaks English and French, which makes her accessible to patients from a variety of cultural backgrounds.

Dr. Elango is originally from Cameroon and grew up in Atlanta, Georgia. She comes from a family of physicians. Dr. Elango believes in listening to each patient and creating a partnership to maintain and improve lifelong health. Patients trust her expertise because she consistently provides high-quality care that leads to positive and lasting health outcomes.

Dr. Elango is affiliated with Lenox Hill Hospital and NYU Langone Health.

Hari Polavarapu, MD, is a board-certified Internal Medicine and Primary Care provider at Tru Medical Management. Dr. Polavarapu, who also goes by “Dr. P,” sees patients at both practice locations in the Navy Hill and Williamsburg neighborhoods of Brooklyn, New York. He provides all his patients with outstanding conservative and preventive care.

Dr. Polavarapu is the founder of Tru Medical Management — a modern, comfort-driven primary care practice. Growing up in a medical family in India with philanthropic roots, Dr. Polavarapu has planted the seed to expand the goal of primary care, advance the medical care model, and improve access to health services.

His mission is to create a positive experience and inclusive environment for all patients. Tru Medical Management is dedicated to fulfilling the vision of high-quality, patient-centered primary care because they believe that better is possible.

Get started with Tru Medical Management today. Call the office to schedule your consultation or appointment. Online booking is also available and is fast and easy.

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.

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.