Our list of top medical providers is chosen by a survey of their peers. Click here to learn more about our methodology.

Rehan Ahmad

Top Doctor: Surgery - Colon and Rectal
The Oregon Clinic Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St #6N60 • Portland, Oregon 97213
503-281-0561

Khayree Butler

Top Doctor: Surgery - Colon and Rectal
Legacy Medical Group - Good Samaritan
2222 NW Lovejoy St Bldg 1 #601 • Portland, Oregon 97210
503-413-5514

Sungeyun David Cho

Top Doctor: Surgery - Colon and Rectal
Kaiser Permanente Sunnybrook Medical Office
9900 SE Sunnyside Rd • Clackamas, Oregon 97015

Joseph Harrison Frankhouse

Top Doctor: Surgery - Colon and Rectal
Legacy Medical Group - Good Samaritan
2222 NW Lovejoy St Bldg 1 #601 • Portland, Oregon 97210
503-413-5514

Amanda Verienna Hayman

Top Doctor: Surgery - Colon and Rectal
The Oregon Clinic Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St #6N60 • Portland, Oregon 97213
503-281-0561

Daniel Herzig

Top Doctor: Surgery - Colon and Rectal
OHSU Digestive Health Center - South Waterfront
3485 S Bond Ave • Portland, Oregon 97239
503-494-4373

Maria Ximena Traa Kiely

Top Doctor: Surgery - Colon and Rectal
The Oregon Clinic Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St #6N60 • Portland, Oregon 97213
503-281-0561

Waleed Lutfi Lutfiyya

Top Doctor: Surgery - Colon and Rectal
Kaiser Permanente Westside Medical Office
2875 NW Stucki Ave • Hillsboro, Oregon 97124

David O'Brien

Top Doctor: Surgery - Colon and Rectal
The Oregon Clinic Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St #6N60 • Portland, Oregon 97213
503-281-0561

David P. Parsons

Top Doctor: Surgery - Colon and Rectal
Kaiser Permanente Sunnybrook Medical Office
9900 SE Sunnyside Rd • Clackamas, Oregon 97015

Alizah Rotramel

Top Doctor: Surgery - Colon and Rectal
Legacy Medical Group - Good Samaritan
2222 NW Lovejoy St Bldg 1 #601 • Portland, Oregon 97210
503-413-5514

V. Liana Tsikitis

Top Doctor: Surgery - Colon and Rectal
OHSU Digestive Health Center - South Waterfront
3485 S Bond Ave • Portland, Oregon 97239
503-494-4373

Mark Whiteford

Top Doctor: Surgery - Colon and Rectal
The Oregon Clinic Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St #6N60 • Portland, Oregon 97213
503-281-0561