LARISSA LILLIAN HARRISON
NPI 1952990848
Speech-Language Pathologist in Waukesha, WI
About Larissa Lillian Harrison NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LARISSA LILLIAN HARRISON (NPI 1952990848) is an individual speech-language pathologist provider in Waukesha, Wisconsin, licensed in Wisconsin (5108-154) and active in the NPI registry since January 2021. She maintains 2 additional practice locations and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Larissa Lillian Harrison 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.
Medicare Billing Reassignments
2Medicare enrollment records show Larissa Harrison reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Waukesha, WI 53186
- Reassigned Medicare billing, Wisconsin enrollment
- 19 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Larissa Harrison's NPI number?
The NPI number for Larissa Harrison is 1952990848. It was assigned to this individual provider in the NPPES registry on January 14, 2021. The provider is also known as Larissa Lillian Lafavor.
Where is Larissa Harrison located?
Larissa Harrison practices at 222 Park Pl, Waukesha, WI 53186. The listed phone number is (262) 446-9466.
What is Larissa Harrison's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Larissa Harrison enrolled in Medicare?
Yes. Larissa 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 Larissa Harrison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Larissa Harrison reassigns Medicare benefits to 2 organizations: Presbyterian Homes Of Wisconsin, Inc. (Waukesha, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, 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 Larissa Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Larissa Harrison accept?
Health plans from UnitedHealthcare list Larissa 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 Larissa Harrison was last updated on May 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.