Dr. Thomas Walter Umbach



Dr. Thomas Umbach is the medical director of bariatric surgery for the Valley Health System, which is a chain of five hospitals in Las Vegas, Nevada. He is a fellowship trained, Center of Excellence surgeon for weight loss surgery, is a Fellow of the American College of Surgeons and Fellow of American Society for Metabolic & Bariatric surgery. The Hospital where Dr Umbach performs the surgeries in Las Vegas is also a Bariatric Center of Excellence. The Consumers’ Research Council of America, a Washington, D.C. based research organization, ranks Dr Umbach as America’s Top Surgeons in the field of bariatric surgery. Dr Umbach has been doing weight loss surgery since 2000, and found a Center of Excellence in Oregan in record time before he moved to Las Vegas. 100% of his practice is in Bariatrics.

Video Interview:

Dr. Thomas Walter Umbach – CURRICULUM VITAE

Languages spoken: English, Spanish

Professional Experience:

    • Board Certified, General Surgery
    • Fellow American College of Surgeons
    • July 2008 – Present: Thomas Umbach, MD PC dba Blossom Bariatric
    • March 2006-June 2008: Surgical Director, Oregon Bariatric
    • Peace Health, Eugene, Oregon
      • Established a new multi disciplinary Bariatric Program
      • Spear-headed aggressive marketing and developing program to reach
    • Center of Excellence in 1-1/2 years
    • 2003-2006: Senior Partner, Kaiser Permanente
    • July 2002-January: Bariatric, General and Vascular Surgery
    • Kaiser Permanente, South San Francisco, CA
      • Established Laparoscopic Gastric Bypass Program
      • 500 Major Cases, 400 Gastric Bypass
    • July 2001-June 2002: Fellowship Minimally Invasive Surgery

Educational Qualifications:

    • Program Director: Namir Kathouda, University of Southern California, Los Angeles, California
    • July 1997- June 2001: General Surgery Residency Kaiser Permanente Los Angeles Medical Center
    • 2000-2001: Chief Resident Rotations at USC, Cedars-Sinai and Kaiser
    • July 1996-June 1997: General Surgery Internship
    • July 1992-may 1996: Doctor of Medicine, Medical College of Virginia, Richmond, Virginia
    • 1988-1989: Undergraduate Study Abroad Program, University of Costa Rica, San Pedro, Costa Rica
    • 1986-1991: Bachelor of Science in Biology with Honors, College of William and Marry, Williamsburg, Virginia

Honors and Awards

Residency

  • Resident Research Presentation Award, 4/99 Physicians Recognition Award-AMA

Medical School

  • President of the MCV chapter of the American Medical Student Association Chairman Heart to Heart Program

Undergraduate School

    • 1986-1991: Menlo Park Rotary Club Scholarship
    • 1990: Outstanding College Students of America
    • Phi Eta Sigma and Alpha Lambda Delta Freshman Honorary Societies
    • Phi Sigma Biologic Honor Society
    • Ferguson Scholarship for Undergraduate Research (Honor Thesis)

Secondary School

    • Eagle Scout
  • California Scholarship Federation lifetime member

Personal Memberships

    • American Society for Metabolic and Bariatric Surgery
    • Fellow : Society of the American College of Surgeons
    • Fellow : Induction Ceremony October 2005
    • Society of American Gastrointestinal Endoscopic Surgeons (SAGES)
    • Member : American Society of Bariatric Surgeons (ASBS)
    • Member : Academic Appointments
    • Clinical Instructor of Surgery, Keck School of Medicine, USC 2001-2002

Hospital Appointments

    • Assistant Unit Chief, Emergency Surgery Services
    • Los Angeles County General Hospital
    • Faculty Fellow Staff, Division of Surgery
    • USC/Norris Comprehensive Cancer Center and Hospital
    • Faculty fellow Staff, University Hospital, USC
    • Staff July 2002- January 2006: Kaiser Permanente, South San Francisco Medical Center
    • Staff March 2006-June 2008: Sacred Heart Medical Center
    • Provisional Staff July 2008-Present: Desert Springs Hospital Medical Center Licensure & Certifications:
    • Medical Board of California
      • Physician and Surgeon
    • Medical Board of Oregon
      • Physician and Surgeon
      • Fluoroscopy Supervisor and Operator

Committees

    • 1999-2001: Institutional Graduate Education Committee, Resident representative, Kaiser, Los Angeles Medical Center
    • 2001: Quality Assurance Committee, Los Angeles County Hospital
    • 2002-2006: Continuing Medical Education Committee, Kaiser South San Francisco
    • 2005: Credentials and Privileges Committee, Kaiser South San Francisco

Publications

    • Umbach, TW, Dorazio DA, Primary resection and anastomosis for perforated left colon lesions. Am Surgeon 1999, 65 (10), 931-3
    • Katkhouda N, Khalil M, Manhas S, Grant SW, Velmahous G, Umbach TW
    • Kaiser A: Andre Toupet: A surgeon technician. Ann Surg 2002, In press
    • Kaiser A, Umbach TW, Katkhouda N, Laparoscopic Splenectomy, J Laparoendosc Adv Surg Tech A 2001, Dec; 11 (6): 383-90
    • Kaiser A, Umbach TW, Katkhouda N: Predictors of outcome following Laparoscopic Splenectomy. Problems in General Surgery

Abstracts

    • Umbach, TW, Guenther JM: Effect of Temporal Artery Biopsy on the Treatment of Presumed Temporal Arteritis. Kaiser Permanente Surgery Symposium, March 1997

Presentations Given

    • Hirschsprung’s Disease. Grand Rounds, Department of Surgery, Kaiser Permanent Los Angeles Medical Center, August 1999
    • Invasive Breast Cancer. Grand Rounds, Department of Surgery, Kaiser Permanent Los Angeles Medical Center, August 2000
    • Difficult Permanent Hemodialysis Access. Grand Rounds, Department of Surgery, Kaiser Permanent Los Angeles Medical Center, March 2001
    • Advantages in the Management of Ventral Hernias, Lecture and laboratory instruction, University of Southern California, April 2002

Courses Attended

    • August 1997: SAGES Resident Workshop
    • June 1999: Advanced Minimal Access, American Pediatric Surgical Association
    • October 1999: The Comprehensive Laparoscopic Skills Integration Program
    • June 2001: Advanced Foregut Laparoscopic Surgery, SAGES
    • August 2001: Fellowship Fundamentals Conference, WL Gore
    • September 2001: Maximizing the Impact and Effectiveness of Your Bariatric Program
    • September 2002: A Multi-disciplinary Approach to the Treatment of Morbid Obesity and Complications of the Bariatric Surgery
    • June 2004: Annual Meeting American Society for Bariatric Surgery
    • December 2004: Successful Peritoneal Dialysis Access
    • April 2005: Approach to Bariatric Revision Surgery
    • October 2006: Bariatric Surgery Conference of the Cascades

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