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With his advanced training in primary care and urgent care, Josh Shajan, MD, is the go-to provider for patients and their families in and around Greenwich, Stamford and areas. He cares for patients at Greenwich Primary Care in the Cos Cob neighborhood of Greenwich, and serves as Medical Director of the practice. 

After attending Bergen Catholic High School, Dr. Shajan earned admission to an 8-year BS/MBA/MD program, completing his bachelor’s degree at Union College in Schenectady, New York, his Master of Business Administration through Union Graduate College, and then received his Doctor of Medicine from Albany Medical College in New York in 2012.

Dr. Shajan then completed his residency in internal medicine through the Yale University School of Medicine at Greenwich Hospital in Connecticut.

Since completing residency, Dr. Shajan has provided comprehensive primary and urgent care services continuously in Greenwich. Additionally, he has also previously served as the medical director for a network of New York City-based urgent cares, prior to joining a private practice in Greenwich in 2018. WIth the launch of Greenwich Primary Care, Dr. Shajan continues his tenure of providing high-quality care comprehensive primary and immediate care for numerous Greenwich and surrounding-area residents and their families.

When he’s not busy caring for patients, Dr. Shajan enjoys spending time with his wife Kavya, and their son at their home in Greenwich.

Dr. Mansourati is a board-certified internal medicine physician widely recognized for his compassionate, evidence-based, and patient-centered approach to care. He is deeply committed to building strong, lasting relationships with his patients—empowering them with knowledge and support to live healthier, more fulfilling lives. With a unique blend of clinical expertise, research experience, and holistic care philosophy, Dr. Mansourati delivers care that is both comprehensive and deeply personalized.

He earned his medical degree from the University of Kalamoon and went on to join Duke University as a Postdoctoral Researcher, where he studied cell biology and the cancer microenvironment. His passion for advancing medical science continued at the University of Southern California, where he contributed to research on innovative cancer therapeutics.

Dr. Mansourati completed his internal medicine residency at MedStar Health in Baltimore, gaining broad experience in managing complex medical conditions and delivering high-acuity urgent care. During this time, he also collaborated with Johns Hopkins University on cutting-edge research projects.

His dedication to advancing clinical care and research led to his selection for the competitive Hematology and Oncology fellowship at St. Joseph's University Medical Center. While he continues to train in this specialized field, Dr. Mansourati remains deeply connected to his roots in internal medicine and is proud to bring his diverse expertise to the patients of Greenwich Primary Clinic.

Outside of his medical career, Dr. Mansourati leads an active lifestyle and enjoys mountain biking, hiking, CrossFit, and playing basketball.

Byoung Yang, MD, is the experienced physician and wound care specialist at BY Wound Care Internal Medicine in White Plains, New York, where he provides cutting-edge medicine with old-school care. Dr. Yang understands how difficult it is for patients to make decisions about their health care, and spends the time necessary educating his patients so they can make the most informed decisions about their health and medical needs. 

After earning his medical degree at Chonbuk National University School of Medicine in Chonbuk, South Korea, where he graduated in the top 10% of his class, Dr. Yang completed his internship at the National Police Hospital in Seoul, South Korea. He then relocated to the United States to continue his residency training in Internal Medicine at Mt. Vernon Hospital, New York, while also receiving his Pathology residency training at New York Medical College. 

During his internal medicine residency, Dr. Yang was fortunate to train under renowned wound care specialist Jorge Beale, MD. He then completed his fellowship training in wound care and hyperbaric medicine at the esteemed Hospital of the University of Pennsylvania in Philadelphia. 

Dedicated to his profession and medical specialty, Dr. Yang is a frequent speaker at local and national wound care meetings. He was the second-place winner of the 2007 Undersea and Hyperbaric Medical Society President Award for research in stem cells in hyperbaric oxygen. 

Dr. Yang holds board certifications from the Undersea and Hyperbaric Medical Society and the American Board of Internal Medicine. He is an affiliated physician with White Plains Hospital.

Dr. Yang is a classical pianist and painter.

Melanie R. Weiner, PA-C, is a dedicated physician assistant committed to delivering top-notch, empathetic healthcare to her patients. With a wealth of experience serving diverse communities, Melanie currently practices at Greenwich Primary Care in Stamford, Connecticut. 

After earning her bachelor’s degree in allied health from the University of Connecticut in Storrs, Melanie pursued her passion for healthcare by obtaining her Master of Physician Assistant Studies (MPAS) from Pace University – Lenox Hill Hospital in New York, NY. During her tenure at Pace University, Melanie distinguished herself as a PA didactic student tutor and was honored with induction into the prestigious Pi Alpha – National Honor Society.

Driven by a desire to foster enduring connections with her patients, Melanie gravitated towards primary care. She believes in a patient-centric approach to medicine, emphasizing collaboration and support throughout every stage of life. Melanie's dedication to personalized care ensures that each patient receives a tailored treatment plan aimed at optimizing their overall well-being.

With Melanie, patients can expect compassionate care grounded in expertise and a genuine commitment to their health. Whether addressing acute concerns or providing ongoing preventive care, Melanie strives to make a meaningful difference in the lives of those she serves.

Dr. Mansourati is a board-certified internal medicine physician widely recognized for his compassionate, evidence-based, and patient-centered approach to care. He is deeply committed to building strong, lasting relationships with his patients—empowering them with knowledge and support to live healthier, more fulfilling lives. With a unique blend of clinical expertise, research experience, and holistic care philosophy, Dr. Mansourati delivers care that is both comprehensive and deeply personalized.

He earned his medical degree from the University of Kalamoon and went on to join Duke University as a Postdoctoral Researcher, where he studied cell biology and the cancer microenvironment. His passion for advancing medical science continued at the University of Southern California, where he contributed to research on innovative cancer therapeutics.

Dr. Mansourati completed his internal medicine residency at MedStar Health in Baltimore, gaining broad experience in managing complex medical conditions and delivering high-acuity urgent care. During this time, he also collaborated with Johns Hopkins University on cutting-edge research projects.

His dedication to advancing clinical care and research led to his selection for the competitive Hematology and Oncology fellowship at St. Joseph's University Medical Center. While he continues to train in this specialized field, Dr. Mansourati remains deeply connected to his roots in internal medicine and is proud to bring his diverse expertise to the patients of Greenwich Primary Clinic.

Outside of his medical career, Dr. Mansourati leads an active lifestyle and enjoys mountain biking, hiking, CrossFit, and playing basketball.

With his advanced training in primary care and urgent care, Josh Shajan, MD, is the go-to provider for patients and their families in and around Greenwich, Stamford and areas. He cares for patients at Greenwich Primary Care in the Cos Cob neighborhood of Greenwich, and serves as Medical Director of the practice. 

After attending Bergen Catholic High School, Dr. Shajan earned admission to an 8-year BS/MBA/MD program, completing his bachelor’s degree at Union College in Schenectady, New York, his Master of Business Administration through Union Graduate College, and then received his Doctor of Medicine from Albany Medical College in New York in 2012.

Dr. Shajan then completed his residency in internal medicine through the Yale University School of Medicine at Greenwich Hospital in Connecticut.

Since completing residency, Dr. Shajan has provided comprehensive primary and urgent care services continuously in Greenwich. Additionally, he has also previously served as the medical director for a network of New York City-based urgent cares, prior to joining a private practice in Greenwich in 2018. WIth the launch of Greenwich Primary Care, Dr. Shajan continues his tenure of providing high-quality care comprehensive primary and immediate care for numerous Greenwich and surrounding-area residents and their families.

When he’s not busy caring for patients, Dr. Shajan enjoys spending time with his wife Kavya, and their son at their home in Greenwich.

Maged Boutros, MD, is the CEO and Medical director of Prevention Clinics who obesity board-certified and a board-certified internist who started Prevention Clinics, which has locations in Maywood and Clifton, New Jersey. 

Dr. Boutros started developing a deep interest in integrative medicine and obesity medicine at the end of his fourth year of practice when he was doing his fellowship in anti-aging and integrative medicine. In addition to being a caring and pleasant doctor, he is a dynamic leader and serves on multiple hospital committees to help implement positive change. With nearly 20 years of clinical experience, Dr. Boutros has successfully assisted over 15,000 patients since 2003.

Since 2006, the weight loss program at Prevention Clinics has successfully treated many patients. Dr. Boutros continues to use evidence-based research results to modify the program when needed. Dr. Boutros is well versed in obesity medications in new jersey, bergen county, clifton, maywood , hackensack, paramus ,passaic and surrounding towns and is able to navigate around complex cases. 

Building on this vast experience, Prevention Clinics offers the best in healthy, sustainable weight loss and maintenance programs, including lifestyle modification, appetite suppressants, GLP-1 weight loss medications like ozempic, mounjaro, Tirzepatide, Zepbound and wegovy, nutritional plans, protein products, nutraceuticals, and supplements, all designed to help you lose and maintain your weight.

Dr. Boutros graduated from Saba University School of Medicine and completed his residency training in internal medicine primary care at Hackensack UMC Mountainside. He then went on to further his interests and career by pursuing fellowship training in integrative medicine  and has been quadruple boarded.

Dr. Boutros is enthusiastic about providing the most optimal medical management for his patients, using a multi-disciplinary approach whenever possible so that they can resume their normal daily activities and continue to lead productive and satisfying lives. His treatment modalities are in strict accordance with the established protocols and expected standards of care. His compassionate care, clinical skills, and empathy have resulted in the outstanding reputation he maintains with his patients and referring physicians. He is accepting new patients at this time and will be happy to welcome you to Prevention Clinics.

Dr. Boutros treats a variety of medical conditions in the office, hospital, and in the comfort and convenience of the patient’s home. Dr. Boutros is a top primary care doctor in new jersey, who is not willing to stop at the surface and goes deeper within the core of the problem.

He is currently active at Hackensack UMC, Holy name medical center and mountainside medical center.. Dr. Boutros is also a fellow and board certified in the Academy of Anti-Aging and Regenerative Medicine and Obesity Medicine. Dr. Boutros treats patients ranging from adolescents to the elderly with a wide range of medical illnesses and in many different settings. He is extremely involved with the care of his patients and devotes his complete attention to each of them as he oversees all processes that contribute to the care of his patients. He sets a collaborative atmosphere in his office, where he leads and interacts with every member of his team to ensure the highest standards of medical care.

Dr. Boutros is the Medical Director of Prevention Clinics. He started these multi-specialty health care centers because of his comprehensive training, experience, and strong interest in integrative medicine, aesthetics, cosmetics, anti-aging, regenerative medicine, and obesity medicine. He offers medical and aesthetic services that include platelet-rich plasma (PRP), BOTOX® Cosmetic, JUVÉDERM®, mesotherapy/lipotherapy/lipo-dissolve, adult and adolescent weight management, anti-aging medicine/preventive medicine, and bio-identical hormone replacement therapy.

In hormone replacement therapy, Dr. Boutros has trained and is a fellow who is board certified by the American Academy of Anti-Aging and Regenerative Medicine.

Dr. Boutros speaks three (3) different languages and is dedicated to giving back to the community.

Dr. Demetrios Panagiotou serves patients of Bergen County at the Keystone Cardiovascular Center in Maywood and Edgewater, NJ. As a board-certified cardiologist, Dr. Panagiotou specializes in non-invasive cardiology. He’s experienced in preventive cardiology with hypertension and hyperlipidemia management, stress testing, cardiac arrhythmias, ischemic heart disease, congestive heart failure (systolic and diastolic), heart disease in renal failure patients, and advanced cardiac imaging for all cardiac conditions. His goal is to provide patients with highest quality care that is patient-centric and compassionate. He will help coordinate patient care and provide appropriate and dedicated referrals as needed for each individual patient. His goal is to provide the best possible treatment plan for all his patients.

After graduating from Carnegie Mellon University, he started his medical training at the Weill Cornell Medical College of Cornell University. Dr. Panagiotou then completed his Internal Medicine residency at New York University Hospital. He subsequently completed a general Cardiovascular Disease fellowship at Rutgers University-Robert Wood Johnson Hospital. Lastly, he pursued an additional cardiology fellowship in Nuclear Cardiology and Advanced Cardiac Imaging at the New York Presbyterian Hospital of Columbia University. Dr. Panagiotou is one of the few cardiologists in the tri-state area that is designated by the American Society of Hypertension as a Hypertension Specialist. Moreover, Dr. Panagiotou holds the distinction on being an expert in Cardiac PET imaging and stress testing..

Dr. Panagiotou has been appointed Assistant Professor of Cardiology and Internal Medicine at the Seton Hall University School of Medicine. Dr. Panagiotou has numerous publications and has presented at national and international conferences. This prestigious training has afforded Dr. Panagiotou with the capabilities to start his own cardiovascular practice at the Keystone Cardiovascular Center to provide the best healthcare possible to the patients of Bergen County and the surrounding metropolitan area, including Bergen County, Hudson County, Hackensack, Maywood, Glen Rock, Hawthorne, Westwood, Ridgewood, Paterson, Edgewater, North Bergen, Weehawkin, West New York.

Board-certified in adult and pediatric allergy and immunology, Peter Benincasa, MD, proudly serves the communities of Clark, Garfield, and Clifton, New Jersey. As one of the expert providers of Consultants in Asthma, Allergy and Immunology, Dr. Benincasa dedicates himself to providing patients of all ages with excellent medical care.

Dr. Benincasa earned his medical degree from the University of Naples Federico II School of Medicine in Naples, Italy. Then he relocated to the United States to complete his internship and medical residency in adult and pediatric immunology at the University of Medicine and Dentistry of New Jersey.

During his training, Dr. Benincasa was named chief medical resident at Newark Beth Israel Medical Center in Newark, New Jersey.  He has served as clinical assistant professor in the division of allergy and immunology at UMDNJ teaching internists and pediatricians who wish to specialize in allergy and immunology. Dr. Benincasa stays current on emerging research and medical developments

His commitment to excellence in the field of allergy and immunology has remained strong throughout his years of service.

Dr. Tara Rajiyah is an experienced adult and pediatric endocrinologist at The Heart Center of the Oranges, PA, who sees patients at the West Orange and Belleville offices. 

Dr. Rajiyah earned her medical degree at the Royal College of Surgeons in Ireland in Dublin and completed internal medicine and pediatrics residencies at Newark Beth Israel Medical Center in New Jersey. Dr. Rajiyah also completed pediatric and adult endocrinology training at the University of Chicago in Illinois. 

She offers expertise in caring for children and adults with Type 1 and Type 2 diabetes, thyroid disorders, hormone imbalances, hypoglycemia, polycystic ovary syndrome (PCOS), and pubertal and growth concerns. She’s highly skilled in endocrinology and medical weight management — nutrition counseling plays a vital role in her treatment plans. 

Dr. Rajiyah is compassionate, personalizing treatment plans based on a patient’s unique needs. She maintains her medical credentials with continuing education and uses the latest advances in treatments and technologies.

Dr. Rajiyah welcomes new and existing patients to The Heart Center of the Oranges, PA, and looks forward to exceeding their expectations. 

The Heart Center of the Oranges, PA, is a medical practice with multiple locations: West Orange, East Orange, South Orange, Maplewood, Newark, Belleville, and Bloomfield, New Jersey. Led by a skilled team of physicians, nurses, and other medical professionals, the practice serves people aged 20 and older in person and virtually via telemedicine.

The Heart Center of the Oranges, PA, offers specialty services, including cardiology, endocrinology, gynecology, internal medicine, neurology, podiatry, pulmonology, women’s wellness, pediatric endocrinology, nutrition, and sleep medicine. Patients with chronic diseases or general medicine concerns can turn to the highly trained experts at The Heart Center of the Oranges, PA, for superior care.

The skilled medical team personalizes each treatment plan based on a patient’s medical needs, lifestyle, and desired outcomes.

Those with diabetes, foot or ankle issues, gynecology concerns, or heart, kidney, or lung diseases rely on The Heart Center of the Oranges, PA, for exceptional care in a welcoming setting. Undergoing routine care reduces the risk of bothersome symptoms and severe medical complications. 

The Heart Center of the Oranges, PA, team is friendly, providing top-notch patient-centered care using the latest advances in technology and research-backed treatments. They compassionately welcome new and existing patients to the practice.

Schedule an in-person or telehealth appointment at The Heart Center of the Oranges, PA, by phone or online today.

Mamatha Mohan, MD, is a board-certified internal medicine physician at The Heart Center of the Oranges, PA, providing outstanding health care. The practice has locations in East Orange, West Orange, South Orange, Maplewood, Newark, and Bloomfield, New Jersey. 

Dr. Mohan was born and raised in India. She studied at Kakatiya Medical College in Warangal, Telangana, India, earning her medical degree. After graduation, Dr. Mohan completed a medical internship at Gandhi Medical College, Secunderabad, in Hyderabad, India, before moving to the United States.

Upon arriving in America, Dr. Mohan completed an internal medicine residency at Mountainside Hospital in Montclair, New Jersey. She excelled in the program, becoming chief resident in her final year. 

At The Heart Center of the Oranges, PA, Dr. Mohan provides preventive, primary, and chronic care. She loves building strong and lasting relationships with her patients and feels honored to play an active role in keeping them healthy and well. 

Dr. Mohan is board-certified by the American Board of Internal Medicine. She’s also a member of several professional organizations, including the Female Physician Group of New Jersey, the American Medical Association, and the American College of Physicians.

Outside of work, Dr. Mohan enjoys traveling and watching movies. She’s also an avid cook who likes preparing new recipes for her family. 

Dr. Mohan welcomes old and new patients alike to The Heart Center of the Oranges, PA.

Priscilla Chow, MD, is a board-certified physician specializing in Pulmonary and Critical Care Medicine, committed to delivering compassionate, patient-centered care. She provides expert care to patients at TruDoc Medical LLC in Clifton, New Jersey. With a strong focus on improving respiratory health, Dr. Chow brings extensive expertise in diagnosing and managing a wide range of complex lung and breathing conditions.

She earned her Doctor of Osteopathic Medicine from the New York Institute of Technology College of Osteopathic Medicine. Following medical school, Dr. Chow completed an Internal Medicine Residency and advanced her training with a Fellowship in Pulmonary and Critical Care Medicine. Her comprehensive training has equipped her to treat conditions such as chronic obstructive pulmonary disease (COPD), asthma, interstitial lung disease, pulmonary hypertension, and acute respiratory distress syndrome (ARDS).

Dr. Chow takes a personalized approach to care, prioritizing open communication and collaboration with patients to develop tailored treatment plans. Whether managing long-term respiratory conditions or providing critical care in intensive settings, she is passionate about supporting patients through every stage of their health journey.

With a reputation for attentive, expert care, Dr. Chow looks forward to helping patients breathe easier and achieve better lung health.