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  • Gastroenterology, Surgery, Bariatric Surgery
  • Accepting new patients
  • 26 years of experience
  • Az Weight Loss Clinic 1855 E Southern Ave, Tempe, AZ 85282
  • (480) 887-4586

Brief Intro

Dr. MICHAEL ORRIS is a BOARD CERTIFIED WEIGHT LOSS SURGEON 

Michael Orris, DO, MBA, FASMBS, is a founding partner and lead surgeon at AZ Weight Loss Clinic – located in Tempe, Glendale, and Tucson, Arizona – and Arizona Surgical Institute. 

Dr. Orris graduated from Philadelphia College of Osteopathic Medicine, completed his residency at Pinnacle Health in Harrisburg, Pennsylvania, and earned a master’s degree in healthcare administration from St. Joseph’s University. 

With a passion for helping patients attain and maintain a healthy weight, Dr. Orris successfully performs hundreds of weight-loss surgeries every year. Patients benefit from his years of bariatric surgery experience and the personal intensity he brings to each case.

Recognized consistently as a “Top Doc” by PHOENIX Magazine, Dr. Orris is also proficient in hiatal hernia repair, umbilical, inguinal and abdominal wall hernia repair, upper endoscopy, colonoscopy, gallbladder surgery, and gastrointestinal surgery. 

AZ Weight Loss Clinic

A center of excellence, AZ Weight Loss Clinic is your home for weight loss surgery with offices in Phoenix, Glendale, and Tucson, Arizona.

The team of Michael Orris, DO, MBA, FASMBS, Thomas Buddensick, MD, and Mike Murphy, RD, take a patient-centered approach to care, guiding their patients through each step of the weight loss process.

The highly skilled team specializes in all types of bariatric surgery, including gastric bypass, duodenal switch, and sleeve gastrectomy. They use minimally invasive laparoscopic surgery to minimize incision size, reduce post-surgical pain, and speed-up recovery.

AZ Weight Loss Clinic also offers dietary counseling with its registered dietitian and a medical weight loss program.  In addition to weight loss surgery, the team also performs general surgery to diagnose and surgically treat conditions that affect various body systems, including the digestive and endocrine systems.

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Education Background

MEDICAL SCHOOL

Philadelphia College Of Osteopathic Medicine - 2000

Pennsylvania State University College Of Medicine - 1999

Languages Spoken

  • English
  • Spanish

Location & Hours

  • Az Weight Loss Clinic
  • 1855 E Southern Ave, Tempe, AZ 85282
  • Mon:8:30 am - 5:00 pm
    Tue:8:30 am - 5:00 pm
    Wed:8:30 am - 5:00 pm
    Thu:8:30 am - 5:00 pm
    Fri:8:30 am - 5:00 pm
    Sat:Closed
    Sun:Closed

Specialties Treated

  • Gastroenterology
  • Bariatric Surgery
  • Surgery

Conditions Addressed

  • Abdominal Hernia
  • Acute Conjunctivitis
  • Anemia
  • Benign Polyps of the Colon
  • Candidiasis
  • Cholelethiasis or Cholecystitis
  • Constipation
  • Diabetes Mellitus (DM)
  • Disorders of Lipoid Metabolism
  • Diverticulitis
  • Esophagitis
  • Gastroesophageal Reflux Disease (GERD)
  • Inguinal Hernia
  • Internal Derangement of Knee Cartilage
  • Peripheral Nerve Disorders
  • Pulmonary Embolism
  • Ventral Hernia
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Procedures Performed

  • Bariatric Surgery
  • Hernia Repair
  • Colonoscopy
  • Gastric bypass
  • Gastric Sleeve Surgery
  • Gastroenterology Consultation
  • Bariatric Nutrition
  • Revisional bariatric surgery
  • Robotic Bariatric Surgery
  • Weight Control And Nutritional Evaluation
  • Weight Loss Management
  • Medical Weight Loss
  • Wellness and Weight Loss Services
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Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Blue Cross Blue Shield of Arizona
  • Mercy Care
  • Meritain Health
  • Blue Cross Blue Shield of Illinois
  • UnitedHealthcare
  • HealthSmart
  • Aetna
  • Health Net
  • Health Choice Arizona
  • Medica
  • BLUE CROSS of CALIFORNIA
  • Golden Rule
  • Blue Cross Blue Shield
  • CHAMPVA
  • Banner Health
  • Gilsbar 360 Alliance
  • Medicare
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  • Cancer 22
  • Cardiology, Heart & Vascular Surgery 18
  • Orthopedics 35
  • Neurology & Neurosurgery 27
  • Gastroenterology & GI Surgery 34
  • Pulmonology & Lung Surgery 37
  • Diabetes & Endocrinology 13
  • Children's Hospital 6
  • Urology 32
  • Psychiatry 28
  • Geriatrics 34
  • Rehabilitation 19
  • Obsterics & Gynecology 3
  • Ear, Nose & Throat 4
  • Rheumatology 1
  • Long Term Care 5
  • Maternity Care (Uncomplicated Pregnancy) 3