Donald Tjossem, MS, MAC, SAP, CDP
NPI 1649483009 · Counselor · Lakebay, WA
Donald Tjossem, MS, MAC, SAP, CDP is a Counselor provider in Lakebay, WA (NPI 1649483009).
Provider details
- NPI number
- 1649483009
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- MS, MAC, SAP, CDP
- Sex
- Male
- Sole proprietor
- Yes
- License
- RC00039575 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service 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
- 2007-05-08
- Last updated
- 2025-09-11
Frequently asked questions
- What is Donald Tjossem's NPI number?
- Donald Tjossem's National Provider Identifier (NPI) is 1649483009, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Tjossem's specialty?
- Donald Tjossem is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Donald Tjossem located?
- Donald Tjossem's practice location on file with NPPES is 8903 Key Peninsula Hwy N, Lakebay, WA 98349-9326.
- What is Donald Tjossem's phone number?
- The practice phone number listed in the NPPES registry for Donald Tjossem is (253) 884-4860.
- Is Donald Tjossem's NPI active?
- Yes — Donald Tjossem's NPI (1649483009) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.