Mary Chellberg
NPI 1912797028 · Addiction (Substance Use Disorder) Counselor · Tacoma, WA
Mary Chellberg is a Addiction (Substance Use Disorder) Counselor provider in Tacoma, WA (NPI 1912797028).
Provider details
- NPI number
- 1912797028
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 61675098 (WA)
Specialties & taxonomies
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
1 yr 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
- 2025-05-12
- Last updated
- 2025-05-12
- Certified
- 2025-05-11
Frequently asked questions
- What is Mary Chellberg's NPI number?
- Mary Chellberg's National Provider Identifier (NPI) is 1912797028, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chellberg's specialty?
- Mary Chellberg is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Chellberg located?
- Mary Chellberg's practice location on file with NPPES is 1712 6th Ave Ste 202, Tacoma, WA 98405-3300.
- What is Mary Chellberg's phone number?
- The practice phone number listed in the NPPES registry for Mary Chellberg is (253) 473-7586.
- Is Mary Chellberg's NPI active?
- Yes — Mary Chellberg's NPI (1912797028) is active in the NPPES registry as of the last update on 2025-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.