Louann Mercier, DDS
NPI 1518986546 · Dentist · Chehalis, WA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louann Mercier, DDS is a Dentist provider in Chehalis, WA (NPI 1518986546).
Provider details
- NPI number
- 1518986546
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Female
- Sole proprietor
- No
- License
- DE00009333 (WA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-07-19
- Last updated
- 2025-02-03
- Certified
- 2025-02-03
Frequently asked questions
- What is Louann Mercier's NPI number?
- Louann Mercier's National Provider Identifier (NPI) is 1518986546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louann Mercier's specialty?
- Louann Mercier is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Louann Mercier located?
- Louann Mercier's practice location on file with NPPES is 2690 Ne Kresky Ave, Chehalis, WA 98532-2412.
- What is Louann Mercier's phone number?
- The practice phone number listed in the NPPES registry for Louann Mercier is (360) 330-9595.
- Does Louann Mercier accept Medicare?
- Louann Mercier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louann Mercier's NPI active?
- Yes — Louann Mercier's NPI (1518986546) is active in the NPPES registry as of the last update on 2025-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.