Bariatric & Metabolic Surgery

Expert Care for Weight-Related Conditions

Our Team

Mark Dalvin, MD Benjamin Yglesias, MD

Mark Dalvin, MD
Board Certified General Surgeon
Fellowship Trained in Metabolic & Bariatric Surgery

General and Bariatric Surgeon Dr. Mark Dalvin shares his philosophy of care.

Benjamin Yglesias, MD
Board Certified General Surgeon
Fellowship Trained in Metabolic & Bariatric Surgery

Learn more about General and Bariatric Surgeon Dr. Benjamin Yglesias.


Benefits of Bariatric Surgery

Proven Clinical Outcomes

Significant, Durable Weight Loss

50–80% excess weight loss depending on procedure, maintained long-term with appropriate follow-up.

Type 2 Diabetes Resolution

Up to 80–90% of patients experience remission or significant improvement — often before meaningful weight loss occurs.

Cardiovascular Risk Reduction

Significant reduction in blood pressure, cholesterol, cardiac events, and stroke risk.

Sleep Apnea Improvement

Greater than 80% of patients experience resolution or major improvement in obstructive sleep apnea.

Joint Pain & Mobility

Reduced load on joints leads to decreased pain and improved function — often reducing or eliminating the need for joint replacement.

Mental Health & Quality of Life

Consistent improvements in depression, anxiety, self-esteem, and overall quality of life.

Reduced Long-Term Mortality

Bariatric surgery is associated with a 30–40% reduction in long-term all-cause mortality.


What Patients Should Know

Common Patient Concerns

“Is surgery safe?”

Bariatric surgery is safer than many common elective procedures. The risk of untreated severe obesity far exceeds the surgical risk.

“Will insurance cover it?”

Most major insurance plans cover bariatric surgery for eligible patients. We handle the prior authorization process.

“How long is recovery?”

Most patients go home the day after surgery and return to light activity within 2–3 weeks.

“Will I have to follow a special diet forever?”

Patients follow a structured diet progression and develop healthy long-term habits. Our team guides them every step of the way.


Bariatric Surgery Drs. Dalvin & Yglesias

A Referral Today Can Change Patient's Lives

Bariatric surgery is the most effective long-term treatment for severe obesity and its complications.

Why Partner With Us?

Both surgeons are fellowship-trained in bariatric & metabolic surgery

  • Board certified in general surgery
  • All procedures performed minimally invasively — laparoscopic and robotic
  • Comprehensive pre- and post-operative patient support
  • We communicate back to referring providers at every key milestone

What Happens After A Referral?

  1. Patient contacts our office or we reach out to them
  2. Comprehensive evaluation and insurance verification
  3. Pre-operative education and multidisciplinary workup
  4. Surgery and coordinated postoperative care
  5. Long-term follow-up with patients and primary care providers— informed every step of the way

Referral Criteria for Bariatric Surgery

Standard Referral Criteria

BMI ≥ 40 — without comorbidities

BMI ≥ 35 — with one or more weight-related comorbidities

BMI ≥ 30 — with poorly controlled Type 2 diabetes or metabolic syndrome

Weight-Related Comorbidities

Any of the following qualify a patient for consideration:

  • Type 2 diabetes mellitus

  • Hypertension

  • Obstructive sleep apnea (OSA)

  • Hyperlipidemia / dyslipidemia

  • Nonalcoholic fatty liver disease (NAFLD/NASH)

  • Gastroesophageal reflux disease (GERD)

  • Osteoarthritis of weight-bearing joints

  • Cardiovascular disease or elevated cardiac risk

  • Polycystic ovary syndrome (PCOS)

  • Obesity hypoventilation syndrome

  • Venous stasis disease or lymphedema

  • Pseudotumor cerebri

  • Urinary stress incontinence

  • Depression or anxiety related to obesity


What We Treat & How We Can Help

Procedures offered

Sleeve Gastrectomy

Removes ~80% of the stomach, reducing hunger and intake. No intestinal rerouting.

Roux-en-Y Gastric Bypass

Creates a small gastric pouch and reroutes the intestine. Gold standard for metabolic disease and severe GERD.

SADI-S

Single Anastomosis Duodeno-Ileal Bypass with Sleeve — a powerful option for severe obesity or significant metabolic disease.

One Anastomosis Gastric Bypass

A single-connection bypass that combines restriction and malabsorption — an effective option for durable weight loss and metabolic improvement.

Paraesophageal Hernia Repair

Minimally invasive repair of complex hiatal and paraesophageal hernias.

All procedures are performed minimally invasively (laparoscopic or robotic) by fellowship-trained surgeons.

Call Us

Call 910-739-0022 to discuss your care. 

UNC Health Surgical Specialists at Southeastern Health Mall
910-739-0022
2934 North Elm Street, Suite E
Lumberton, NC 28358

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