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Once a week we offer an initial consultation session with our surgeons. These informative meetings are a chance for you to get to know both Dr. Ludwig and Dr. Simchuk, while learning what you can expect from weight-loss treatment at our practice.
Please contact one of our friendly team members to schedule a visit at our Chico, California practice.
We look forward to meeting you!
Deron Ludwig, M.D.
Erik Simchuk, M.D.
North Valley Surgical Associates
251 Cohasset Road, Suite 310
Chico, CA 95926
Phone: 530- 891-1651
Fax: 530-891-1644
View Our Before-and-After Gallery
We invite you to view before-and-after photos of the transformations that some of our patients have undergone at North Valley Surgical Associates. You can see the beautiful, trim figures that are possible with weight-loss surgery. Other benefits, such as enhanced self-esteem and a reduced risk of diabetes, hypertension, and other weigh-related illnesses, are not clearly visible in the pictures but are nonetheless significant, life-changing results of bariatric treatment.
Before After
At North Valley Surgical Associates, we are dedicated to achieving outstanding bariatric surgery results and helping our patients establish healthy lifestyles. We see, on a daily basis, the improved quality of life, including an increase in energy and self esteem, that many of our patients experience after undergoing weight-loss surgery.
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Founded in 2001 by Dr. Deron Ludwig and Dr. Erik Simchuk, our practice quickly gained distinction as a premiere treatment center for weight-loss patients in Northern California, Southern Oregon, and Nevada. We set ourselves apart from other practices through:

In addition to offering advanced surgical solutions, including the LAP-BAND® System and Roux-en-Y gastric bypass, we focus on the medical, psychological, social, and nutritional problems associated with excess weight. We have created a comprehensive program for our bariatric patients, called Successful Solutions, that is designed to set a new standard for obesity treatment. This long-term approach to health encompasses education, exercise, nutrition, and support programs so that patient outcomes are optimized to the greatest extent possible.
Meet Our Doctors
Meet Dr. Deron Ludwig and Dr. Erik Simchuk
Both of our bariatric surgeons are valued and respected for their high surgical success rates, their comprehensive approaches to post-operative treatment, and their warm, friendly natures. Dr. Deron Ludwig and Dr. Erik Simchuk are committed to providing safe, effective, and compassionate bariatric care to obese patients, and their efforts have helped our practice earn a Center of Excellence designation from the American Society for Bariatric Surgery and the Surgical Review Corporation. Learn more about Dr. Ludwig and Dr. Simchuk, including information about their educational backgrounds, professional accomplishments, and personal interests.
Patient Testimonials
“I will always be grateful to Dr. Ludwig and staff, for giving me the knowledge and support to safely guide me through my life changing journey to a happy, healthy life. With gastric bypass surgery along with knowledge and support I now have the tools to stay on track and in control of my health needs.”
Julie
“Dr. Ludwig and his staff have changed my life! Not only do I have a renewed love of life, I have a renewed love of myself. Instead of running from the mirror, I look into it and smile! Thank you for my life as it should be lived!”
Neisha
Other Surgical Procedures
In addition to offering advanced surgical weight-loss treatment, Dr. Deron Ludwig and Dr. Erik Simchuk have had specialty training in all types of laparoscopic and thoracoscopic procedures. Laparoscopic and thoracoscopic techniques are among the most advanced in medical science today; they offer minimally invasive ways to perform gallbladder and colon surgeries, as well as other procedures that would normally require more intrusive operations and longer recovery times. Drs. Ludwig and Simchuk are the only surgeons in the area who offer laparoscopic removal of the spleen and adrenal glands. Our surgeons also excel in laparoscopic upper gastrointestinal surgery and anti-reflux surgery, as well as laparoscopic abdominal and inguinal hernia repair.
