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Stephen Siefert, LICSW
NPI 1497863013 · Clinical Social Worker · Seattle, WA
Stephen Siefert, LICSW is a Clinical Social Worker provider in Seattle, WA (NPI 1497863013).
Provider details
- NPI number
- 1497863013
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LW00008011 (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
10740 Meridian Ave N
Suite 104
Seattle, WA 98133-9010
Phone: (206) 367-3117
Fax: (206) 367-3117
Street-level locationGet directions
Mailing address
10740 Meridian Ave N
Seattle, WA 98133-9010
Registry dates
- Enumerated
- 2006-08-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Siefert's NPI number?
- Stephen Siefert's National Provider Identifier (NPI) is 1497863013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Siefert's specialty?
- Stephen Siefert is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Stephen Siefert located?
- Stephen Siefert's practice location on file with NPPES is 10740 Meridian Ave N, Seattle, WA 98133-9010.
- What is Stephen Siefert's phone number?
- The practice phone number listed in the NPPES registry for Stephen Siefert is (206) 367-3117.
- Is Stephen Siefert's NPI active?
- Yes — Stephen Siefert's NPI (1497863013) 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.