MR. JAMES LOUIS HARRISON III MS, CSAC, LPC, NCGC-
NPI 1255371142
Social Worker in New Berlin, WI

Active since June 08, 2006PECOS EnrolledAccepts Medicare Assignment
15350 W NATIONAL AVE STE 108, NEW BERLIN, WI 53151(262) 249-6565(262) 910-5477 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. James Louis Harrison Iii Ms, Csac, Lpc, Ncgc- NPPES

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

MR. JAMES LOUIS HARRISON III MS, CSAC, LPC, NCGC- (NPI 1255371142) is an individual social worker in New Berlin, Wisconsin and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1255371142
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameMR. JAMES LOUIS HARRISON IIICredential: MS, CSAC, LPC, NCGC-
Location Address15350 W NATIONAL AVE STE 108New Berlin, WI 53151-5158
Mailing Address10012 West Capitol Drive, Suite 101, West Grove Clinic, LlcWauwatosa, WI 53222 · (414) 810-4844 · Fax (414) 810-4845
Fax(262) 910-5477
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateJune 8, 2006
Last NPPES UpdateNovember 5, 2025
NPPES CertifiedNovember 5, 2025
✔ NPI 1255371142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 13018 (WI)
15350 W NATIONAL AVE STE 108, New Berlin, WI 53151

Other Identifiers 2

Medicaid100024752WI
Medicaid42019700WI

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. James Louis Harrison Iii Ms, Csac, Lpc, Ncgc- is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931545811
PECOS Enrollment IDI20240313004431
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show James Harrison reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health
15350 W NATIONAL AVE STE 108
New Berlin, WI 53151
  • Reassigned Medicare billing, Wisconsin enrollment
  • 8 clinicians in this Medicare group
Mental Health
16535 W BLUEMOUND RD, SUITE 200
Brookfield, WI 53005
  • Reassigned Medicare billing, Wisconsin enrollment
  • 556 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 5

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

Counselor (Professional)
15350 W NATIONAL AVE STE 108
NEW BERLIN, WI 53151
Counselor (Professional)
15350 W NATIONAL AVE STE 108
NEW BERLIN, WI 53151
Counselor (Mental Health)
15350 W NATIONAL AVE STE 108
NEW BERLIN, WI 53151
Social Worker (Clinical)
15350 W NATIONAL AVE STE 108
NEW BERLIN, WI 53151
Counselor (Mental Health)
15350 W NATIONAL AVE STE 108
NEW BERLIN, WI 53151

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 James Harrison's NPI number?

The NPI number for James Harrison is 1255371142. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is James Harrison located?

James Harrison practices at 15350 W National Ave Ste 108, New Berlin, WI 53151. The listed phone number is (262) 249-6565.

What is James Harrison's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is James Harrison enrolled in Medicare?

Yes. James Harrison is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for James Harrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Harrison reassigns Medicare benefits to 2 organizations: Evidence-Based Counseling Solutions LLC (New Berlin, WI) and Cornerstone Counseling Services, Inc (Brookfield, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Harrison accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Dean Health Plan, HealthPartners and Network Health and 2 other insurers list James Harrison as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James Harrison was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.