MARGARET R OSTROWSKI (PAC) – Physician Assistant, NPI 1134464704
Physician Assistant
Main info
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Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MARGARET R OSTROWSKI (PAC)
7900 N MILWAUKEE AVE
STE. 17
NILES, IL 607143159
Phone: (847) 470-1500
Fax: (847) 470-1550
Type: Mailing
350 S NORTHWEST HWY STE 106
PARK RIDGE, IL 600684262
Phone: (847) 470-1500
Fax: (847) 470-1550
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 18 Open Payments records for all available years, with a total value of $612.
Total Amount is formed as General ($612) + Research ($0) + Ownership ($0) = $612.
Last reported payment date: 2024-11-13 • Largest payer in this snapshot: Galderma Laboratories, L.P. ($302).
Total Amount
$612
General + Research + Ownership
Payments
18
Total payment records
General Amount
$612
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Galderma Laboratories, L.P. | $302 |
| Merz North America, Inc. | $171 |
| ABBVIE INC. | $113 |
| COLOPLAST CORP | $25 |
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: 2013-03-05
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 |
|---|---|---|---|---|
| I20130305000153 | I | Physician Assistant | IL | 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 60714)
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