Katherine Au, M.D.
NPI 1184913642 · Obstetrics & Gynecology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Au, M.D. is a Obstetrics & Gynecology Physician provider in Portland, OR (NPI 1184913642).
Provider details
- NPI number
- 1184913642
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD171880 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-05
- Last updated
- 2015-06-24
Frequently asked questions
- What is Katherine Au's NPI number?
- Katherine Au's National Provider Identifier (NPI) is 1184913642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Au's specialty?
- Katherine Au is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Au located?
- Katherine Au's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011.
- What is Katherine Au's phone number?
- The practice phone number listed in the NPPES registry for Katherine Au is (503) 494-8211.
- Does Katherine Au accept Medicare?
- Katherine Au is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Au's NPI active?
- Yes — Katherine Au's NPI (1184913642) is active in the NPPES registry as of the last update on 2015-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.