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ALEXANDRA MROZ
NPI 1538000609
Speech-Language Pathologist in Oshkosh, WI

Active since April 02, 2026
631 HAZEL ST, OSHKOSH, WI 54901(920) 252-4443(920) 252-4460 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alexandra Mroz NPPES

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

ALEXANDRA MROZ (NPI 1538000609) is an individual speech-language pathologist provider in Oshkosh, Wisconsin, licensed in Illinois (146028749) and active in the NPI registry since April 2026. She is a graduate of Other (2024).

NPPES Registry Identity

NPI1538000609
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameALEXANDRA MROZ
Location Address631 HAZEL STOshkosh, WI 54901-4600
Mailing Address631 Hazel StOshkosh, WI 54901-4600 · (920) 252-4443 · Fax (920) 252-4460
Phone(920) 252-4443
Fax(920) 252-4460
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateApril 2, 2026
NPPES CertifiedApril 2, 2026
✔ NPI 1538000609 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in IL · 146028749
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
631 HAZEL ST, Oshkosh, WI 54901
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexandra Mroz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7719453521
PECOS Enrollment IDI20260420001422

Medicare Billing Reassignment

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

Oasis Therapy Services LLC
Same address
Multi-Specialty
631 HAZEL ST
Oshkosh, WI 54901
  • Reassigned Medicare billing, Illinois enrollment
  • 49 clinicians in this Medicare group
NPI 1386381598 (920) 393-9998

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.

JAMIE LYNN NOBLE M.S., CCC/SLP
Speech-Language Pathologist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 252-4442
TAYLOR MARIE ZAHN OTR/L, CNS
Occupational Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (773) 825-3336
LESLEY THAO
Occupational Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 252-4442
BELLA VISTA SENIOR CARE LLC
Assisted Living Facility
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 393-9998
OASIS THERAPY SERVICES LLC
Clinic/Center (Multi-Specialty)
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 393-9998
STEPHANIE ANN JAMES
Physical Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (773) 495-2495
LEAH AVERY PT
Physical Therapist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 252-4442
SYDNEY BREWER
Speech-Language Pathologist
631 HAZEL ST
OSHKOSH, WI 54901
Winnebago County (920) 252-4442

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 Alexandra Mroz's NPI number?

The NPI number for Alexandra Mroz is 1538000609. It was assigned to this individual provider in the NPPES registry on April 2, 2026.

Where is Alexandra Mroz located?

Alexandra Mroz practices at 631 Hazel St, Oshkosh, WI 54901. The listed phone number is (920) 252-4443.

What is Alexandra Mroz's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Alexandra Mroz enrolled in Medicare?

Yes. Alexandra Mroz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexandra Mroz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Mroz 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 Alexandra Mroz'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 Alexandra Mroz was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.