ALEXANDRA PIWOWARCZYK (MSW, LCSW) – Clinical Social Worker, NPI 1154963395
Clinical Social Worker
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for ALEXANDRA PIWOWARCZYK (MSW, LCSW)
103 LINCOLN ST
O FALLON, MO 633661603
Phone: (314) 833-0349
Type: Location
Corporate Lake Drive, 39 North, Creve Coeur, Saint Louis County, Missouri, 63132, United States
SAINT LOUIS, MO 631321716
Phone: (314) 968-2350
Type: Location
103 Lincoln St
O Fallon, MO 633661603
Phone: (314) 833-0349
Type: Location
1310 HRC PLAZA DR
LAKE ST LOUIS, MO 633671869
Phone: (636) 339-4475
Type: Location
178, Rue Grand Drive, Lake Saint Louis, Saint Charles County, Missouri, 63367, United States
LAKE SAINT LOUIS, MO 633671911
Phone: (314) 250-2403
Type: Mailing
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: 2021-09-10
PECOS data refreshed: 2026-05-27
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
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20210910000499 | I | Clinical Social Worker | MO | TBD |
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.
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 63366)
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