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Holly Mason, MSW, LCSW
NPI 1861330565 · Clinical Social Worker · Appleton, WI
Holly Mason, MSW, LCSW is a Clinical Social Worker provider in Appleton, WI (NPI 1861330565).
Provider details
- NPI number
- 1861330565
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 9714-123 (WI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(53/100 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
2800 E Enterprise Ave Ste 333
Appleton, WI 54913-7889
Phone: (414) 414-6117
Street-level locationGet directions
Mailing address
2800 E Enterprise Ave Ste 333
Appleton, WI 54913-7889
Registry dates
- Enumerated
- 2026-03-23
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Holly Mason's NPI number?
- Holly Mason's National Provider Identifier (NPI) is 1861330565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Mason's specialty?
- Holly Mason is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Holly Mason located?
- Holly Mason's practice location on file with NPPES is 2800 E Enterprise Ave Ste 333, Appleton, WI 54913-7889.
- What is Holly Mason's phone number?
- The practice phone number listed in the NPPES registry for Holly Mason is (414) 414-6117.
- Is Holly Mason's NPI active?
- Yes — Holly Mason's NPI (1861330565) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.