About
William A. Berger, MD holds double board certification in Internal Medicine and Obesity Medicine and serves as the founder and Medical Director of Northeast Medical Practice. He earned his Bachelor of Science magna cum laude in Biology with University Honors before completing his MD with High Distinction in Basic, Translational, and Clinical Science Research at the Frank H. Netter School of Medicine at Quinnipiac University. He then completed his residency in Internal Medicine at Icahn School of Medicine at Mount Sinai (Elmhurst).
Before medicine, Dr. Berger spent a decade teaching biology to nursing and PA students at Quinnipiac University and served the State of Connecticut as an environmental and food safety chemist. His research record includes more than 20 peer-reviewed scientific publications, one of which earned a Sigma Xi Society Paper of the Year distinction. Clinically, he focuses on weight optimization, longevity, obesity medicine, chronic disease management, and aesthetic medicine. He is passionate about preventing chronic disease before it starts and helping patients improve their external appearance alongside their internal health. Dr. Berger builds long-term relationships with patients and gives them direct access via cell phone, text, and email. He also advocates personally for patients during hospital stays.
Education & Training
Undergraduate
Bachelor of Science magna cum laude in Biology with University Honors
Medical School
Frank H. Netter School of Medicine at Quinnipiac University, MD with High Distinction in Basic, Translational, and Clinical Science Research
Residency
Internal Medicine, Icahn School of Medicine at Mount Sinai (Elmhurst)
Certifications
Conditions Treated
Who is Dr. Berger right for?
Dr. Berger is a strong fit for adults seeking a single physician who manages both their internal health and aesthetic goals. Patients dealing with obesity, metabolic conditions, or chronic diseases like diabetes and hypertension benefit from his dual board certification. Those who want direct, unhurried access to their doctor will appreciate his concierge model. Patients interested in weight optimization through GLP-1 medications, body composition tracking, or structured nutrition plans will find a thorough clinical program here. He also serves patients looking for neurotoxin treatments, dermal fillers, or skin care alongside their primary care.
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Frequently Asked Questions
Dr. Berger treats a broad range of conditions including hypertension, high cholesterol, diabetes, fatty liver disease, chronic pain, migraines, and obesity. He also addresses sleep disorders, substance use, and stress management. His dual board certification in Internal Medicine and Obesity Medicine gives him deep clinical grounding across both primary care and weight-related disease.
Yes. Dr. Berger holds board certification in both Internal Medicine and Obesity Medicine. He earned his Obesity Medicine certification as a Diplomate of the American Board of Obesity Medicine. This double certification is relatively uncommon and reflects his focused expertise across both specialties.
Dr. Berger earned his MD with High Distinction at the Frank H. Netter School of Medicine at Quinnipiac University. He completed his Internal Medicine residency at Icahn School of Medicine at Mount Sinai at Elmhurst. Before medicine, he also taught biology at Quinnipiac University for a decade and worked as a chemist for the State of Connecticut.
Dr. Berger takes a comprehensive, data-driven approach to weight management. He uses the SECA 125 bioimpedance scale for precise body composition analysis and incorporates GLP-1 medications, Robard Corporation meal replacements, and weekly meal plans. He tracks changes in muscle, fat, and metabolic markers over time to guide treatment decisions.
Yes. Dr. Berger offers a full range of aesthetic services including Botox, Xeomin, Dysport, Kybella, and dermal fillers such as Juvederm, Restylane, Radiesse, and Sculptra. He also performs microneedling, chemical peels, microdermabrasion, and facials. His liquid facelift technique uses hyaluronic acid and collagen-inducing fillers.
Yes. Dr. Berger gives concierge members his direct cell phone number and responds to texts and emails personally. This direct access is a core part of his practice model. Patients do not go through an answering service to reach him.
Yes. When a patient visits the emergency department or a hospital admits them, Dr. Berger engages directly with the hospital medical team. He coordinates care and advocates personally on the patient's behalf throughout the stay.
Dr. Berger has authored more than 20 peer-reviewed scientific publications. One of his papers earned a Sigma Xi Society Paper of the Year distinction. He earned his MD with High Distinction in Basic, Translational, and Clinical Science Research, reflecting a strong foundation in evidence-based medicine.
Doctor profile last updated March 21, 2026