Our list of Top Dentists is chosen by a survey of their peers. Click here to learn more about our methodology.

Rehan Saeed 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

Megan Cavanaugh

Top Doctor: Surgery - Colon and Rectal
Northwest Center for Colorectal Health
9155 SW Barnes Rd #231 • Portland, Oregon 97225
503-216-5380

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 Knight Cancer Institute - South Waterfront
3485 SW Bond Ave • Portland, Oregon 97239
503-494-7999

Waleed Lutfi Lutfiyya

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

David P. 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

V. Liana Tsikitis

Top Doctor: Surgery - Colon and Rectal
OHSU Knight Cancer Institute - South Waterfront
3485 SW Bond Ave • Portland, Oregon 97239
503-494-7999

Mark Huntington 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