This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / WA

DIANA K KOALA, MD

OBSTETRICS/GYNECOLOGY

Medical school: UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE

Graduated: 1994

NPI: 1811969801

Practice Locations (1)

WOMENS HEALTHCARE ALLIANCE PLLC

1101 MADISON ST, SUITE 1150

SEATTLE, WA 981043558

2063863400

Source: CMS National Downloadable File, September 2026.

DIANA KOALA, MD | HealthCareAtlasUSA