Our Surgeons

At North Valley Surgical Associates, we share one common goal — to help each and every one of our patients live healthier and happier lives. Dr. Deron Ludwig and Dr. Erik Simchuk are experienced surgeons who understand the problems that individuals struggling with obesity face and how difficult it can be to make the decision to undergo bariatric surgery. Since 2007, we have been dedicated to helping patients understand the issues surrounding obesity, as well as providing them with state-of-the-art treatments and personal support to help them reach their weight-loss goals.

Our practice offers the unique feature of every operation being performed by both surgeons working together. At many other institutions it is common practice to have the surgeon working with a technician or nurse assistant. We feel it is important to our patients to have the skills of two surgeons working together to ensure the best possible outcomes.

Meet Dr. Deron Ludwig

Deron Ludwig, M.D.Deron J. Ludwig, M.D., Bariatric Program Surgical Director – Dr. Ludwig is a graduate of Loma Linda University School of Medicine and has returned to Chico to practice both general and bariatric surgery. Dr. Ludwig spent three years as a staff surgeon at Keesler Medical Center, Biloxi, Mississippi with the US Air Force. Dr. Ludwig underwent surgical training in general and bariatric surgery at Virginia Mason Medical Center in Seattle, Washington. As an accomplished laparoscopic surgeon, Dr. Ludwig performs all weight loss surgeries offered at Enloe Medical Center laparoscopically. Dr. Ludwig is a member of ASBS and a Fellow in the American College of Surgeons.


  • Society for Surgery of the Alimentary Tract
  • Society of American Gastrointestinal Endoscopic Surgeons
  • American Society of Metabolic and Bariatric Surgery
  • American College of Surgeons
  • American Society for Bariatric Surgery
  • Obesityhelp.com sponsor
  • Alpha Omega Alpha Medical Honor Society

Meet Dr. Erik Simchuk

Erik Simchuk, M.D.Erik J. Simchuk, M.D., Bariatric Program Surgeon – Dr. Simchuk is a graduate of Dartmouth Medical School in Hanover, N.H. He underwent surgical training in general and bariatric surgery at Virginia Mason Medical Center in Seattle, finishing his chief resident year in June 2000. Dr. Simchuk undertook a fellowship in upper gastrointestinal surgery at the Bristol Royal Infirmary in Bristol, England in 2000 and 2001. He joined Deron J. Ludwig, M.D., Surgeon and Program Surgical Director for Successful Solutions, in practice in September 2007 after practicing in Loveland, Colorado for six years. Dr. Simchuk performs all weight-loss operations laparoscopically and provides other advanced laparoscopic treatments to the greater community. He is board-certified in general surgery and maintains active memberships in the American Society for Metabolic and Bariatric Surgery, the Society for Surgery of the Alimentary Tract, and the Society of American Gastrointestinal Endoscopic Surgeons.


  • Society for Surgery of the Alimentary Tract
  • Society of Gastrointestinal Endoscopic Surgeons
  • American Society for Metabolic and Bariatric Surgery

More about North Valley Surgical Associates

North Valley Surgical AssociatesAt North Valley Surgical Associates, our friendly staff, extensive knowledge, training, and experience, combined with exceptional surgical results and outstanding patient support, have helped us to become one of the most trusted weight-loss clinics in Northern California. Because of this, we have been recognized as a Center of Excellence by the  American Society for Bariatric Surgery. We are extremely proud of this distinction, which is shared with a few select bariatric practices in the nation.

Our surgeons and staff are committed to leading the way for obesity treatment and patient advocacy. We believe patient education is essential to successful weight loss. We hold an initial bariatric surgery informational seminar each week, where patients can meet Dr. Ludwig and Dr. Simchuk face-to-face in a spacious and comfortable conference room. During the informational seminar, prospective patients can watch a presentation about the nature of obesity and the surgical support programs we provide as part of the treatment process.

We also believe that the success our patients experience is a direct result of the advanced surgical treatments we offer, which are backed by support programs emphasizing education, nutrition, exercise, and behavioral health. Our practice offers onsite nutrition counseling and behavioral health counseling to patients before and after surgery. We have developed the Lifestyle Management Program to provide longterm support for weight loss maintenance.

Company A


North Valley Surgical Associates has merged with Enloe Medical Center.

Please rest assured that we are still here to care for you ongoing and can reach us at:

The Enloe Bariatric Program:
251 Cohasset Rd., Ste. 300
Chico, California  95926
tel: (530) 332-5350
fax: (530) 893-6032


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Today’s Inspiration:

Behind me is infinite power, before me is endless possibility, around me is boundless opportunity. - Author Unknown

Contact Us

ph: (530) 332-5350 fx: (530) 893-6032
New Body . . . New Beginning!