LESLEY THAO
NPI 1255257853
Occupational Therapist in Oshkosh, WI

Active since June 26, 2026Accepts Medicare Assignment
631 HAZEL ST, OSHKOSH, WI 54901(920) 252-4442(920) 252-4460 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Lesley Thao NPPES

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

LESLEY THAO (NPI 1255257853) is an individual occupational therapist in Oshkosh, Wisconsin and active in the NPI registry since June 2026. The provider is a graduate of Other (2025).

NPPES Registry Identity

NPI1255257853
Entity TypeIndividual
Primary Taxonomy225X00000X
Provider Legal NameLESLEY THAO
Location Address631 HAZEL STOshkosh, WI 54901-4600
Mailing Address631 Hazel StOshkosh, WI 54901-4600 · (920) 252-4442 · Fax (920) 252-4460
Fax(920) 252-4460
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJune 26, 2026
NPPES CertifiedJune 26, 2026
✔ NPI 1255257853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
631 HAZEL ST, Oshkosh, WI 54901

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

Lesley Thao 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 ID8224502703
PECOS Enrollment IDI20260706003843

Medicare Billing Reassignment

Medicare enrollment records show Lesley Thao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
631 HAZEL ST
Oshkosh, WI 54901
  • Reassigned Medicare billing, Wisconsin enrollment
  • 89 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 11

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

Speech-Language Pathologist
631 HAZEL ST
OSHKOSH, WI 54901
Occupational Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Assisted Living Facility
631 HAZEL ST
OSHKOSH, WI 54901
Clinic/Center (Multi-Specialty)
631 HAZEL ST
OSHKOSH, WI 54901
Physical Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Physical Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Speech-Language Pathologist
631 HAZEL ST
OSHKOSH, WI 54901
Speech-Language Pathologist
631 HAZEL ST
OSHKOSH, WI 54901

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 Lesley Thao's NPI number?

The NPI number for Lesley Thao is 1255257853. It was assigned to this individual provider in the NPPES registry on June 26, 2026.

Where is Lesley Thao located?

Lesley Thao practices at 631 Hazel St, Oshkosh, WI 54901. The listed phone number is (920) 252-4442.

What is Lesley Thao's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Lesley Thao enrolled in Medicare?

Yes. Lesley Thao 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 organization bills Medicare for Lesley Thao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lesley Thao reassigns Medicare benefits to Oasis Therapy Services LLC (Oshkosh, WI). The 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 Lesley Thao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lesley Thao was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.