Gastric bypass in NJ at Nusbaum Medical Centers is the most proven weight-loss surgery for severe obesity — and remarkably effective against type-2 diabetes.
At Nusbaum Medical Centers in Cedar Knolls, New Jersey, gastric bypass is performed by Dr. Michael Nusbaum, a board-certified surgeon, FACS FASMBS, with more than 25 years and 25,000+ patients of experience. Often called the "gold standard," the bypass has the longest track record of any bariatric operation.
How Gastric Bypass Works
Roux-en-Y gastric bypass does two things at once. First, the surgeon creates a small stomach pouch, so you feel full on much less food. Second, the small intestine is rerouted so part of it is bypassed, reducing how many calories your body absorbs. Together these changes also shift powerful gut hormones — which is why the bypass so often puts type-2 diabetes into remission, sometimes within days of surgery.
Gastric Bypass Results & Benefits
- Most patients lose 70–80% of excess weight within 12–24 months
- High rate of type-2 diabetes remission
- Strong relief of acid reflux (GERD) and sleep apnea
- Durable, well-studied long-term results
- Performed laparoscopically for faster recovery
Gastric Bypass vs. Gastric Sleeve
The bypass typically produces more weight loss and is the better choice for patients with severe diabetes or significant reflux. The gastric sleeve is simpler with fewer nutritional demands and suits many patients well. If surgery isn't right yet, our medical weight loss program offers a non-surgical path. Dr. Nusbaum performs all of these and will recommend the safest, most effective fit — see the full range of surgical weight loss in NJ.
Am I a Candidate?
Gastric bypass is generally appropriate for adults with a BMI of 40 or higher, or 35 or higher with a weight-related condition such as type-2 diabetes or severe reflux. Dr. Nusbaum's team completes a thorough evaluation and manages insurance and preparation. The American Society for Metabolic and Bariatric Surgery recognizes bypass as a safe, highly effective treatment for obesity and its related diseases.
Why Choose Dr. Nusbaum for Gastric Bypass in NJ
Bypass demands surgical skill, and experience drives outcomes. Dr. Nusbaum, FACS FASMBS, is a recognized national leader who has performed thousands of bariatric procedures. You're supported by a physician-led team from your first visit through years of follow-up. Patients come to Cedar Knolls from across Morris, Essex, Bergen and Union counties for that level of care.

