LILLIE COOK – Physician Assistant, NPI 1205583085
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,035 PHYSICIAN ASSISTANT in IL
Provider Addresses for LILLIE COOK
800 Austin St
Evanston, IL 602023439
Phone: (847) 491-9020
Fax: (847) 491-0182
Type: Location
507 N 17TH STREET
MILWAUKEE, WI 53233
Phone:
Type: Mailing
331 W SURF ST STE 912
CHICAGO, IL 606577227
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $569.
Total Amount is formed as General ($569) + Research ($0) + Ownership ($0) = $569.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: ABBVIE INC. ($202).
Total Amount
$569
General + Research + Ownership
Payments
25
Total payment records
General Amount
$569
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $202 |
| Gilead Sciences, Inc. | $201 |
| Takeda Pharmaceuticals U.S.A., Inc. | $72 |
| Celgene Corporation | $25 |
| Ardelyx, Inc. | $20 |
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: 2025-08-20
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 |
|---|---|---|---|---|
| I20250820004645 | 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 60202)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | IL | |
| Physician Assistant | IL | |
| Nurse Practitioner | IL | |
| Gastroenterology, Internal Medicine | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| P A T H O L O G Y | WI | |
| G A S T R O E N T E R O L O G Y | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| - | IL | |
| G A S T R O E N T E R O L O G Y | IL |
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