John Mathieson, ACSW
NPI 1275562860 · Clinical Social Worker · Battle Creek, MI
John Mathieson, ACSW is a Clinical Social Worker provider in Battle Creek, MI (NPI 1275562860).
Provider details
- NPI number
- 1275562860
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- ACSW
- Sex
- Male
- Sole proprietor
- No
- License
- 6801015676 (MI)
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
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
- 2006-07-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Mathieson's NPI number?
- John Mathieson's National Provider Identifier (NPI) is 1275562860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mathieson's specialty?
- John Mathieson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is John Mathieson located?
- John Mathieson's practice location on file with NPPES is 5500 Armstrong Rd, Battle Creek, MI 49015-1014.
- What is John Mathieson's phone number?
- The practice phone number listed in the NPPES registry for John Mathieson is (269) 966-5600.
- Is John Mathieson's NPI active?
- Yes — John Mathieson's NPI (1275562860) 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.