Meet the
Most Experienced
GI Physicians in Nevada

Why Choose Us?

  • The highest patient satisfaction scores in Nevada
  • The most experienced and largest GI group in Nevada
  • The only pediatric gastroenterologist in Nevada
  • Three convenient locations

Select a doctor to learn more

John H. McAfee, M.D.

Michael R. Solinger, M.D.

Allison W. Venner, M.D.

Phillip Harper, M.D.

Swaroop Pendyala, M.D., M.S.

James T. Doyle, M.D.

Craig Sande, M.D.

Juan C. Gregory, M.D.

Clark A. Harrison, M.D.

Ting-Hui Hsieh, M.D.

Victor K. Chen, M.D.

Christi A. Matteoni, M.D.

Tom Fang, M.D.

Eric M. Osgard, M.D.

John F. Gray, M.D.

Loth E. Lieberstein, M.D.

James Nachiondo, M.D.

Jonathan Pezanoski, M.D.

Timothy Halterman, M.D.

Christopher Bartlett, PA-C

Darren Hill, APRN

Paul Johns, PA-C

Richard McCracken, PA-C


Meet the
GI Consultants
Administrative Staff

Select an administrator to learn more

Marcia Shearer, BS

Chief Financial Officer/Controller

Connie Brown, BS

Director of Operations

Autumn Uyechi, RN, BSN

Director of Center Operations

Julie Kewanyama, MSN, RN, CGRN

Director of Quality Management

Patty Kress, PHR

Human Resources Manager

Debbie Brown, CGCS

Director of Reimbursement

Chris Folsom

Director of Information Technology