Individual provider · Type 1 NPI

Joyce Michelle Koh, MD

Gastroenterology Physician · Hermiston, OR

NPI number 1144480484 Active

Practice location

620 NW 11th St Ste M206
Hermiston, OR 97838-6941

Fax (541) 667-0192

Mailing address

PO Box 18255
Irvine, CA 92623-8255

Other practice locations

  • 601 John St Ste M-302, Kalamazoo, MI 49007-5357 · (269) 349-2266
  • 1342 NE Medical Center Dr Ste 100, Bend, OR 97701-5918 · (541) 706-5777

Specialties and licenses

TaxonomyCodeLicense
Gastroenterology Physician Primary 207RG0100XMD212643 (OR)
Gastroenterology Physician 207RG0100XD0074501 (MD)
Gastroenterology Physician 207RG0100X4301510763 (MI)

Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

5 other providers at this address

Other gastroenterology physician providers in Hermiston

See all in Hermiston →

About NPI 1144480484

Joyce Michelle Koh, MD's National Provider Identifier is 1144480484, issued on Jun 10, 2008. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Hermiston, OR. The record was last updated on Jun 9, 2026.