CASSAUNDRA BRZESKI – Mental Health Counselor, NPI 1366139685

CASSAUNDRA BRZESKI is a healthcare provider. based in Brookfield, Wisconsin. specializing in MENTAL HEALTH COUNSELOR. They hold a License No. 11665-125 (WI). The NPI Number for CASSAUNDRA BRZESKI is 1366139685

Main info

Female
3 Years Of Experience
Accepts Medicare Assignment
Name
CASSAUNDRA BRZESKI
NPI
1366139685
Phone
Not provided
Address
18000 W SARAH LN STE 210
Enumeration Date
18 April 2023
Last Update Date
22 July 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2622678752
Graduation Year
2023 (3 years ago)
PAC ID
9537692645
Group Practice PAC ID
9638602741
Professional Enrollment ID
I20250430003598
Address ID
WI530455840BR18000LNXX401
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience30
Completeness85
Years active:3State licenses:1Digital endpointsOther names

1,777 MENTAL HEALTH COUNSELOR in WI

Provider Addresses for CASSAUNDRA BRZESKI

  • 18000 W SARAH LN STE 210

    BROOKFIELD, WI 530455840

    Phone:

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-04-30

PECOS data refreshed: 2026-06-15

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20250430003598IMental Health CounselorWITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 53045)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9638602741View full group profile
NameSpecialtyState
Mental Health CounselorWI
Mental Health CounselorWI
Mental Health CounselorWI
Clinical Social WorkerWI

Reviews

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Frequently asked questions

What unique ID ties claims to CASSAUNDRA BRZESKI?
NPI 1366139685 is assigned to CASSAUNDRA BRZESKI under the national enumeration system.
Is CASSAUNDRA BRZESKI's NPI currently valid?
The extract we use shows CASSAUNDRA BRZESKI as active.
What does CASSAUNDRA BRZESKI treat or focus on?
Patients typically see CASSAUNDRA BRZESKI under the specialty Mental Health Counselor. Clinical services aligned with this taxonomy classification.
Where does public data place CASSAUNDRA BRZESKI?
The snapshot lists Brookfield, Wisconsin for CASSAUNDRA BRZESKI; download NPPES for the complete set.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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