IndividualActive
William Maier, M.S.W.
NPI 1548368855 · Clinical Social Worker · Sequim, WA
William Maier, M.S.W. is a Clinical Social Worker provider in Sequim, WA (NPI 1548368855).
Provider details
- NPI number
- 1548368855
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- M.S.W.
- Sex
- Male
- Sole proprietor
- Yes
- License
- LW00004075 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
9732 Old Olympic Hwy
Sequim, WA 98382-3150
Phone: (360) 681-4399
Street-level locationGet directions
Mailing address
9732 Old Olympic Hwy
Sequim, WA 98382-3150
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Maier's NPI number?
- William Maier's National Provider Identifier (NPI) is 1548368855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Maier's specialty?
- William Maier is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Maier located?
- William Maier's practice location on file with NPPES is 9732 Old Olympic Hwy, Sequim, WA 98382-3150.
- What is William Maier's phone number?
- The practice phone number listed in the NPPES registry for William Maier is (360) 681-4399.
- Is William Maier's NPI active?
- Yes — William Maier's NPI (1548368855) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.