IndividualActive
Harley Mason, MSW,LSW
NPI 1952285694 · Social Worker · Alton, IL
Harley Mason, MSW,LSW is a Social Worker provider in Alton, IL (NPI 1952285694).
Provider details
- NPI number
- 1952285694
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW,LSW
- Sex
- Female
- Sole proprietor
- No
- License
- 150.118155 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
2615 Edwards St
Alton, IL 62002-3915
Phone: (618) 462-2331
Fax: (618) 462-2504
Street-level locationGet directions
Mailing address
902 W Main St
West Frankfort, IL 62896-2210
Registry dates
- Enumerated
- 2025-08-05
- Last updated
- 2025-10-29
- Certified
- 2025-10-29
Frequently asked questions
- What is Harley Mason's NPI number?
- Harley Mason's National Provider Identifier (NPI) is 1952285694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harley Mason's specialty?
- Harley Mason is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Harley Mason located?
- Harley Mason's practice location on file with NPPES is 2615 Edwards St, Alton, IL 62002-3915.
- What is Harley Mason's phone number?
- The practice phone number listed in the NPPES registry for Harley Mason is (618) 462-2331.
- Is Harley Mason's NPI active?
- Yes — Harley Mason's NPI (1952285694) is active in the NPPES registry as of the last update on 2025-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.