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HOLLY MASON MSW, LCSW
NPI 1861330565
Social Worker - Clinical in Appleton, WI

Active since March 23, 2026
2800 E ENTERPRISE AVE STE 333, APPLETON, WI 54913(414) 414-6117 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 28, 2026, Mar 23, 2026 (2 updates tracked since 2026).

About Holly Mason Msw, Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HOLLY MASON MSW, LCSW (NPI 1861330565) is an individual clinical provider in Appleton, Wisconsin, licensed in Wisconsin (9714-123) and active in the NPI registry since March 2026.

NPPES Registry Identity

NPI1861330565
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameHOLLY MASONCredential: MSW, LCSW
Location Address2800 E ENTERPRISE AVE STE 333Appleton, WI 54913-7889
Mailing Address2800 E Enterprise Ave Ste 333Appleton, WI 54913-7889 · (414) 414-6117
Phone(414) 414-6117
Sole ProprietorYes
Enumeration DateMarch 23, 2026
Last NPPES UpdateMay 28, 20262 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
✔ NPI 1861330565 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in WI · 9714-123
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2800 E ENTERPRISE AVE STE 333, Appleton, WI 54913
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GREENING HOME HEALTHCARE LLC
Custodial Care Facility (Adult Care Home)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (763) 485-1011
MOBILITY TRANSPORT SERVICES LLC
Non-emergency Medical Transport (VAN)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (603) 315-8068
INNOVATIVE MINDS ABA OF WISCONSIN, LTD.
Behavior Analyst
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (559) 977-7321
360 MEDICAL GROUP WISCONSIN SC
Family Medicine
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (551) 372-9260
SOUND MIND LLC
Social Worker (Clinical)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (847) 770-3752
LAUREN RAE BRAUN LPC
Counselor (Mental Health)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (608) 515-8265
ATLASCARE LLC
Non-emergency Medical Transport (VAN)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (614) 632-9787
DR. ALEV G ILDIZ PSYD
Psychologist (Clinical)
2800 E ENTERPRISE AVE STE 333
APPLETON, WI 54913
Outagamie County (414) 502-9023

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Holly Mason's NPI number?

The NPI number for Holly Mason is 1861330565. It was assigned to this individual provider in the NPPES registry on March 23, 2026.

Where is Holly Mason located?

Holly Mason practices at 2800 E Enterprise Ave Ste 333, Appleton, WI 54913. The listed phone number is (414) 414-6117.

What is Holly Mason's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Holly Mason was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.