SARAH ALICE GILFILLAN (PA) – Physician Assistant, NPI 1043971435
Physician Assistant
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Profile Insights
NPPES metrics only — not quality of care.
5,035 PHYSICIAN ASSISTANT in IL
Provider Addresses for SARAH ALICE GILFILLAN (PA)
17850 Kedzie Ave Ste 3500
Hazel Crest, IL 604292082
Phone: (708) 957-4011
Fax: (708) 957-4013
Type: Location
3437 Caroline St
Saint Louis, MO 631041111
Phone: (314) 977-8639
Type: Location
348 S SLEIGHT ST
NAPERVILLE, IL 605405439
Phone: (630) 723-4919
Type: Mailing
3437 CAROLINE ST
SAINT LOUIS, MO 631041111
Phone: (314) 977-8639
Type: Location
29373 NETWORK PL
CHICAGO, IL 606731293
Phone:
Type: Mailing
17850 KEDZIE AVE STE 3500
HAZEL CREST, IL 604292082
Phone: (708) 957-4011
Fax: (708) 957-4013
Type: Location
1400 S MICHIGAN AVE APT 1203
CHICAGO, IL 606053720
Phone:
Type: Mailing
900 RAND RD STE 120
DES PLAINES, IL 600162359
Phone: (312) 767-3244
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $183.
Total Amount is formed as General ($183) + Research ($0) + Ownership ($0) = $183.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($33).
Total Amount
$183
General + Research + Ownership
Payments
7
Total payment records
General Amount
$183
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Regeneron Healthcare Solutions, Inc. | $33 |
| Ardelyx, Inc. | $30 |
| Celltrion USA Inc. | $30 |
| ABBVIE INC. | $30 |
| Lilly USA, LLC | $22 |
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: 2023-05-29
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 |
|---|---|---|---|---|
| I20230529000225 | 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 60429)
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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 | |
| G A S T R O E N T E R O L O G Y | MI | |
| Physician Assistant | IN | |
| Physician Assistant | MO | |
| Gastroenterology, Internal Medicine | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Gastroenterology, Internal Medicine | IL |
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