William Maier
Counselor · Seattle, WA
William Maier is a counselor with a practice address in Seattle, Washington, and NPI 1346479052, issued on Jul 2, 2009. Check the license (Washington RC6010404, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Maier
- Primary taxonomy
- Counselor 101Y00000X
- License number
- RC6010404 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 5TH Ave Ste 800, Seattle, WA 98101
- Phone
- (206) 374-0109
- Enumerated
- Jul 2, 2009
- Record last updated
- Feb 23, 2023
- Entity
- Type 1 · individual
8 nearest counselor records → All 11,350 in Washington → Look up another NPI →
Also registered at 1200 5TH Ave Ste 800
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Morgan Anderson, PHDCounselor1467121194
- Jasper Berg, PHDClinical Psychologist1447643911
- Karen Berlin, MDPsychiatry Physician1740346261
- Emily BondStudent in an Organized Health Care Education/Training Program1154055929
- Alena Borgatti, PHDStudent in an Organized Health Care Education/Training Program1316824840
Verify William Maier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license RC6010404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Maier among 11,350 counselor records in Washington
William Maier is one of 11,350 counselor records with a practice address in Washington. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 8% of them.
- NPI issued2009 · 8% of these records are older, 91% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2023 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101Y00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,278 counselor records list a practice address in Seattle
They are 2,278 of the 41,956 NPPES records with a practice address in Seattle, and 11,350 counselor records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 11,350 in Washington → Every provider in Seattle → Counselor nationwide →
The 8 counselor records with the nearest ZIP codes
- Brandon BellSeattle, WA 981011659783140
- Jessie CabasagSeattle, WA 981011003179565
- Jessica CrosbySeattle, WA 981011467896993
- Allison Fine, MSWSeattle, WA 981011649406646
- Todd JensenSeattle, WA 981011346506284
- Alexander LadrillonoSeattle, WA 981011487066981
- Mackenzie LoftonSeattle, WA 981011396157889
- Patricia Madden, MSSeattle, WA 981011841434792
Common questions
What is William Maier's NPI number?
William Maier's National Provider Identifier (NPI) is 1346479052, issued on Jul 2, 2009. An NPI identifies a provider in billing; it is not a license.
Where is William Maier located?
The NPPES record lists a practice address at 1200 5TH Ave Ste 800, Seattle, WA, 98101. Phone: (206) 374-0109. Providers update this record themselves, so call before visiting.
How can I verify William Maier's license?
NPPES lists Washington license number RC6010404, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.