Our Staff

Our Gastroenterologists

The physicians at North County Gastroenterology maintain the highest level of accreditation and pursue ongoing education to stay abreast of the latest advancements in gastroenterology. The descriptions below will introduce you to our physicians' education, training, and professional credentials. All our physicians are Board Certified in Gastroenterology by the American Board of Internal Medicine.

Doctor Biographies

Christopher E. Devereaux, M.D.

  • College:  UCLA, CA
  • Medical School:  University of Chicago, Prrtzker School of Medicine, IL
  • Internship:  Naval Medical Center, San Diego, CA - Internal Medicine
  • Residency:  Naval Medical Center, San Diego, CA - Internal Medicine
  • Fellowship:  Naval Medical Center, San Diego, CA - Gastroenterology
  • Board Certified: American Board of Internal Medicine - Internal Medicine & Gastroenterology
  • Joined North County Gastroenterology August 1999
 

Thomas C. Krol, M.D., F.A.C.P.

  • College:  Loyola University of Chicago, IL
  • Medical School:  Loyola University. Stritch School of Medicine, IL
  • Internship:  Loyola University, Stritch School of Medicine, IL - Internal Medicine
  • Residency:  Loyola University, Foster McGaw Hospital, IL - Internal Medicine
  • Fellowship:  UCSD, CA - Gastroenterology
  • Board Certified: American Board of Internal Medicine - Internal Medicine & Gastroenterology
  • Joined North County Gastroenterology May 1983
 

Javaid A. Shad, M.D., M.B.A.

  • College:  University of Texas, Austin, TX
  • Medical School:  University of Texas, TX
  • Internship:  Naval Medical Center, San Diego, CA - Internal Medicine
  • Residency:  Naval Medical Center, San Diego, CA - Internal Medicine
  • Fellowship:  Naval Medical Center, San Diego, CA - Gastroenterology
  • Board Certified:  American Board of Internal Medicine - Internal Medicine & Gastroenterology
  • Joined North County Gastroenterology December 2003
  • MBA:  University of Tennessee, TN
 

Michael Shim, M.D.

  • College:  Brown University, RI
  • Medical School:  New York University School of Medicine, NY
  • Internship:  New York University School of Medicine, NY - Internal Medicine
  • Residency:  New York University School of Medicine, NY - Internal Medicine
  • Fellowship:  UCLA Division of Digestive Diseases, CA - Gastroenterology
  • Board Certified:  American Board of Internal Medicine - Gastroenterology
  • Joined North County Gastroenterology June 2008
 

M. Eric Viernes, M.D.

  • College:  University of California, Berkeley, CA
  • Medical School:  University of Wisconsin, WI
  • Internship:  UCLA Medical Center, CA - Internal Medicine
  • Residency:  UCLA Medical Center, CA - Internal Medicine
  • Fellowship:  Scripps Clinic, Green Hospital. CA - Gastroenterology
  • Board Certified:  American Board of Internal Medicine - Internal Medicine & Gastroenterology
  • Joined North County Gastroenterology July 2001
 

Other Providers

 

Physician Assistant - Eva J. Skulsky, PA-C, M.P.A.S.

  • College:  State University of New York at Purchase
  • Medical:  Pace University - Lenox Hill Hospital Physician Assistant Program, New York
  • Medical:  University of Nebraska Medical Center, Masters of Physician Assistant Studies - Gastroenterology & Hepatology
  • Certification: National Commission on the Certification of Physician Assistants - Gastroenterology
  • Joined North County Gastroenterology February 2013
 

Nurse Practitioner - Sara I. Andolina, NP-C

  • Associates Degree, Nursing - Orange County Community College
  • Bachelors of Science in Nursing - University of Phoenix
  • Masters in Nursing, Family Nurse Practitioner - University of Phoenix
  • Certification: American Academy of Nurse Practitioners
  • Joined North County Gastroenterology September 2014