About us
Trusted Worldwide for Excellence & Innovation in Complex Vascular Anomalies Care


Our Center
Your One & Only Destination for Expert Vascular Anomalies Diagnosis and Treatment
Nestled in the heart of Darien, Connecticut, our state-of-the-art vascular care center offers an unparalleled blend of advanced medical excellence and comfort. Designed with the discerning patient in mind, our center provides a soothing environment where cutting-edge vascular treatments meet personalized, compassionate care.
Led by Dr. Naiem Nassiri, a world-renowned vascular surgeon whose expertise attracts patients from across the globe, our center specializes in rare and complex vascular conditions, offering groundbreaking outpatient treatments for adults and pediatric patients. Here, innovation and precision are paired with a commitment to your comfort and well-being.
Whether you’re traveling internationally or seeking expert care close to home, our Darien facility is a space for healing, designed to support your journey toward optimal vascular health.
Led by Dr. Naiem Nassiri, a world-renowned vascular surgeon whose expertise attracts patients from across the globe, our center specializes in rare and complex vascular conditions, offering groundbreaking outpatient treatments for adults and pediatric patients. Here, innovation and precision are paired with a commitment to your comfort and well-being.
Whether you’re traveling internationally or seeking expert care close to home, our Darien facility is a space for healing, designed to support your journey toward optimal vascular health.

Why Choose Us
Setting the Standard for Rare Vascular Conditions
At The Vascular Care Group’s Center for Anomalies and Rare Entities (TVCG CARES), we offer world-class multifaceted expertise under the leadership of our founding director, Dr. Naiem Nassiri, a globally recognized authority in the treatment of vascular anomalies and malformations.
Our center provides a calm and patient-focused environment where cutting-edge, complex surgical, minimally invasive, and non-invasive therapies are delivered with the highest standards of safety and efficacy.
Our focus is primarily on maintaining the patient’s livelihood and maximizing their quality of life throughout the therapeutic journey and beyond. Our commitment to the patients and their loved ones is lifelong, and we aim to be the patients’ “home base” for all things related to their vascular condition-ranging from surgical and interventional needs to psychosocial aspects of their disease and related therapies.
With extensive experience in clinical trials, direct engagement with the U.S. FDA, as well as communications overseas, we remain at the forefront of innovation, ensuring that our patients receive the most advanced and least invasive treatment options available. Our dedicated team is committed to accommodating patients from local, regional, national, and international backgrounds, offering seamless, concierge-level care.
At TVCG CARES, we redefine excellence in the convoluted and often frightening realm of vascular anomalies, providing life-changing treatments with compassion, expertise, and an unwavering commitment to patient well-being.
Our center provides a calm and patient-focused environment where cutting-edge, complex surgical, minimally invasive, and non-invasive therapies are delivered with the highest standards of safety and efficacy.
Our focus is primarily on maintaining the patient’s livelihood and maximizing their quality of life throughout the therapeutic journey and beyond. Our commitment to the patients and their loved ones is lifelong, and we aim to be the patients’ “home base” for all things related to their vascular condition-ranging from surgical and interventional needs to psychosocial aspects of their disease and related therapies.
With extensive experience in clinical trials, direct engagement with the U.S. FDA, as well as communications overseas, we remain at the forefront of innovation, ensuring that our patients receive the most advanced and least invasive treatment options available. Our dedicated team is committed to accommodating patients from local, regional, national, and international backgrounds, offering seamless, concierge-level care.
At TVCG CARES, we redefine excellence in the convoluted and often frightening realm of vascular anomalies, providing life-changing treatments with compassion, expertise, and an unwavering commitment to patient well-being.


let’s talk
Contact Us Today for Expert Care, Answers, and Personalized Treatment Options
(203) 548-7858


