DR. SEAN GRIMM (MD) – Neurology Physician, NPI 1235346941
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,188 NEUROLOGY in IL
Provider Addresses for DR. SEAN GRIMM (MD)
4405, Weaver Parkway, Warrenville, DuPage County, Illinois, 60555, United States
WARRENVILLE, IL 605553269
Phone: (630) 933-4056
Fax: (630) 933-4057
Type: Mailing
1725 W HARRISON ST STE 1010
CHICAGO, IL 606123841
Phone: (312) 226-2371
Fax: (312) 942-1783
Type: Mailing
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 $21.
Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.
Last reported payment date: 2023-04-06 • Largest payer in this snapshot: Daiichi Sankyo Inc. ($21).
Total Amount
$21
General + Research + Ownership
Payments
1
Total payment records
General Amount
$21
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-04-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Daiichi Sankyo Inc. | $21 |
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: 2007-07-14
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 |
|---|---|---|---|---|
| I20070714000052 | I | Neurology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 94 | 54 | $0 |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 27 | 20 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 14 | 14 | $0 |
Insurance plans in this area (ZIP 60555)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | IL | |
| Internal Medicine | IL | |
| Diagnostic Radiology | WI | |
| Internal Medicine | MI | |
| Hematology/Oncology, Hospice/Palliative Care | IL | |
| Nurse Practitioner | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OH | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| O T O L A R Y N G O L O G Y | CT |
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