MICHELLE C O'BRIEN (PA-C) – Physician Assistant, NPI 1245648344
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,672 PHYSICIAN ASSISTANT in WI
Provider Addresses for MICHELLE C O'BRIEN (PA-C)
550 W OGDEN AVE
HINSDALE, IL 605213186
Phone: (630) 323-6116
Fax: (630) 794-8620
Type: Mailing
9200 W Wisconsin Avenue
Department of Neurosurgery
Milwaukee, WI 532263522
Phone: (414) 805-5400
Fax: (414) 955-0115
Type: Location
1010 Executive Dr Ste 250
Westmont, IL 605596137
Phone: (630) 920-2350
Fax: (630) 794-8620
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $146.
Total Amount is formed as General ($146) + Research ($0) + Ownership ($0) = $146.
Last reported payment date: 2024-05-02 • Largest payer in this snapshot: Zimmer Biomet Holdings, Inc. ($146).
Total Amount
$146
General + Research + Ownership
Payments
1
Total payment records
General Amount
$146
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Zimmer Biomet Holdings, Inc. | $146 |
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: 2024-03-26
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20160520000964 | I | Physician Assistant | IL | TBD |
| I20240326000969 | I | Physician Assistant | ME | 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 60521)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | ME | |
| Nurse Practitioner | ME | |
| Certified Registered Nurse Anesthetist (Crna) | ME | |
| Cardiovascular Disease (Cardiology) | ME | |
| Endocrinology, Internal Medicine | ME | |
| - | ME | |
| Nurse Practitioner | ME | |
| Thoracic Surgery | ME | |
| H O S P I T A L I S T | ME | |
| - | NJ |
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