Louie Medical Group Inc. is a patient centered comprehensive urology practice that lives by its mission: Advanced Techniques. Old Fashioned Values. We are committed to using the latest technology in diagnosis and treatment to improve patient outcomes. Being committed means not only having the technology available, but investing time for training, education, and teaching in order to utilize the appropriate technology for the correct diagnosis and problem. The end result is the ability to bring academic knowledge and experience to the communities and people that we serve.

Dr. Michael K. Louie

Dr. Louie is a board certified urologist who founded the Louie Medical Group Inc. in 2012. Before founding the group, he was an Assistant Clinical Professor of Urology at UC Irvine Medical Center in the Department of Urology and at the Long Beach VA Hospital. During his 2 years at UC Irvine, Dr. Louie was the Urology Residency Program Director, Co-Director of the Minimally Invasive Urology Fellowship, and Co-Director of the Robotic Oncology Center. Dr. Louie completed a 2 year Endourology Society endorsed minimally invasive urologic surgery fellowship in 2009.  Dr. Louie completed his residency in Urology at the Ohio State University Medical Center in 2007.

Other Notable Accomplishments

  • First surgeon at UC Irvine to perform retroperitoneal robotic partial nephrectomy, robotic simple prostatectomy, robotic colovesical fistula repair, and robotic nephro-ureterectomy.
  • First surgeon at UC Irvine and one of the first in Southern California to utilize button bipolar plasma-vaporization technology to ablate enlarged prostates due to BPH.
  • One of the largest series of button plasma-vaporization of the prostate surgeries and robotic simple prostatectomies for enlarged prostates due to BPH.
  • Button TURP or plasmabutton vaporization is available at Pomona Valley Hospital, San Antonio Community Hospital, and Upland Outpatient Surgery Center.

Sheila Bobis, PA-C

Urology is a great mix of everything I’m passionate about. It’s unique in its own way because of the combination of outpatient clinic, procedures, and OR; this keeps me on the edge of my seat looking forward to the next day.” –Sheila Bobis, MSPA-C.

Sheila Bobis is board certified by the National Commission of Certification of Physician Assistants. In 2013, she graduated with her Masters of Science in Physician Assistant Studies from Western University of Health Sciences, CA. She attended University of California, Riverside and in 2009, she received her Bachelor of Science in Neuroscience. She has a minor in Liberal Arts, Behavioral Science, and Mathematics.  She has over 5 years of experience working in education and healthcare. She is certified in Advance Cardiac Life Support, Basic Life Support, and First Aid & Cardiopulmonary Resuscitation by the American Heart Association. Sheila’s professional involvements include the American Urologic Association, California Academy of Physician Assistants, and American Academy of Physician Assistants.




Our Team

Kathy Chase

Kathy has over 25 years of urology office experience and is our billing and coding expert.

Sharon Ernsberger

Sharon has over 25 years of urology office experience and is our expert in surgery scheduling and insurance authorization.

Maria Alvarado

Maria has over 5 years of experience in our urology office working in both the front and back office operations.

Nancy Habal

Nancy is our friendly and incredible front office staff.  She is there to help you check in and make appointments.

Yetliza Castellanos-Morales

Yetliza is a wonderful and talented front office and back office staff.  She always makes the patients feel comfortable.

Diana Gutierrez

Diana is our fantastic receptionist and likely the person you will be talking to on the phone.  She also assists with checking patients in and out of the practice.

Marcela Dominguez

Marcela is an incredibly talented front and back office medical assistant.  She will make your visit as easy as possible.