Our Surgeons

Petar Vukasin, M.D.

Medical Director, Colorectal Care Center

Dignity Health Glendale Memorial Hospital and Health Center

Dr. Petar Vukasin has specialized in colorectal surgery for 25 years as a clinician and researcher.
In 1996, he joined the USC faculty with an academic appointment in the Department of Colorectal Surgery, where he remained until June 2011. During this time, Dr. Vukasin concentrated on heading up the department’s highly successful off campus practice at Dignity Health Glendale Memorial Hospital and Health Center.

Dr. Vukasin is a founding member of the Colorectal Care Center at Dignity Health Glendale Memorial Hospital and Health Center. Here, along with his partner Dr. Garza and their comprehensive colorectal care team, he sees patients and continues his research activities.
With his experience in research, teaching and clinical practice, Dr. Vukasin provides his patients highly specialized care for colorectal diseases.

Beyond his surgical and clinical expertise, Dr. Vukasin has been, and continues to be, actively involved in the medical community at Dignity Health Glendale Memorial Hospital and Health Center, having served in numerous capacities at various times including Chief of Surgery, Chief of the Medical Staff, Physician Advisor to the Administration, and Member of the Community Board.

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Dr. Vukasin is a member of several professional memberships, including:

  • American Society of Colon and Rectal Surgeons
  • Society for Surgery of the Alimentary Tract

Education And Training

  • Graduate of USC Keck School of Medicine
  • Internship and Residency in General Surgery, Fellowship Training in Colorectal Surgery,
    at Los Angeles County/USC Medical Center
Ana McElrath Garza 2025

Ana Maria Garza, M.D.

Medical Director, Anal Physiology Program

Dignity Health Glendale Memorial Hospital and Health Center

Dr. Ana McElrath-Garza is a Fellow of the American College of Surgeons and the American College of Colon and Rectal Surgeons. She is board certified in both General Surgery and Colorectal Surgery.

Dr. Garza has a strong interest in providing state-of-the-art surgical care to colorectal patients. Her specialized training in colorectal surgery allows her to extend the latest, most advanced robotic surgical techniques for the surgical care of her patients. Dr. Garza remains committed to her interest in the treatment of colorectal cancer, women’s colorectal health and the prevention of colorectal cancer by actively participating and lecturing at community organizations and meetings.

Dr. Garza is a founding member of the Colorectal Care Center at Dignity Health Glendale Memorial Hospital and Health Center. She is Glendale Memorial Hospital’s Program Leader for the Advancement of Anorectal Physiology and Testing.

Dr. Garza successfully organized the acquisition of the most advanced colorectal diagnostic and treatment capabilities available today. These capabilities are essential for the care of patients with rectal and anal disorders such as rectal cancer, fecal incontinence, chronic constipation, rectal pain, and other complex anorectal abnormalities.

Education And Training

  • Graduate of USC Keck School of Medicine
  • Internship and Residency, USC
  • Research Fellowship, John Wayne Cancer Institute
  • Fellowship Training in Colorectal Surgery, USC
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Robert W. Beart, M.D.

Founder Emeritus of the Colorectal Surgery Institute (Retired)

Dr. Robert W. Beart is a renowned board-certified colorectal surgeon. He graduated from Harvard Medical School in 1971 and completed his surgical training at the University of Colorado and fellowship at the Mayo Clinic.

Dr. Beart joined the Mayo Clinic in 1978 where he served as Chairman of the Department of Colorectal Surgery in Rochester until 1986, and Chairman of the Department of Surgery in Scottsdale until 1992. He then joined the faculty at the University of Southern California (USC) as a tenured Professor of Surgery. From 2003 to 2009, he served as Chairman of the Department of Colorectal Surgery at USC, the first Colorectal Surgery Department in an academic institution in the United States. Dr. Beart also established the USC Center for Colorectal Diseases as USC University Hospital and USC/Norris Cancer Center.

Dr. Beart is Emeritus Professor of Surgery, Keck School of Medicine at USC. In addition, he is a founding member of the Colorectal Surgery Institute at Glendale Memorial Hospital.
A leader in colorectal surgery and research, Dr. Beart pioneered many innovations including the ileal pouch-anal anastomosis, the development of laparoscopic colon surgery, and the advancement of complex rectal cancer care.

Dr. Beart is now fully retired from clinical practice. He continues to be a meaningful member of the team where he provides support and expertise.

Education And Training

  • Graduate of Harvard Medical School, 1971
  • Surgical internship, residencies and fellowship training at the University of Colorado and the Mayo Clinic.

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