Matthew Mallin, LCSW
NPI 1841884277 · Clinical Social Worker · Fort Atkinson, WI
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Mallin, LCSW is a Clinical Social Worker provider in Fort Atkinson, WI (NPI 1841884277).
Provider details
- NPI number
- 1841884277
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 7548-123 (WI)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 500 Mcmillen StFort Atkinson, WI 53538-1233Phone: (920) 563-9542
Registry dates
- Enumerated
- 2021-02-25
- Last updated
- 2022-10-07
- Certified
- 2022-10-07
Frequently asked questions
- What is Matthew Mallin's NPI number?
- Matthew Mallin's National Provider Identifier (NPI) is 1841884277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Mallin's specialty?
- Matthew Mallin is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Matthew Mallin located?
- Matthew Mallin's practice location on file with NPPES is 1520 Madison Ave, Fort Atkinson, WI 53538-3100.
- What is Matthew Mallin's phone number?
- The practice phone number listed in the NPPES registry for Matthew Mallin is (920) 563-5500.
- Does Matthew Mallin accept Medicare?
- Matthew Mallin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Mallin's NPI active?
- Yes — Matthew Mallin's NPI (1841884277) is active in the NPPES registry as of the last update on 2022-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.