JOSEPH E. MERRYWEATHER (PA-C) – Physician Assistant, NPI 1144661448
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,035 PHYSICIAN ASSISTANT in IL
Provider Addresses for JOSEPH E. MERRYWEATHER (PA-C)
2000 SPRING RD
SUITE 200
OAK BROOK, IL 605231804
Phone: (630) 472-8800
Fax: (630) 472-9502
Type: Mailing
1225 W LAKE ST
MELROSE PARK, IL 601604039
Phone: (708) 938-7209
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2013-08-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-08-31 (1013 days ago).
Enrollment records
1
Earliest due date
2023-08-31
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 |
|---|---|---|---|---|
| I20130820000522 | I | Physician Assistant | IL | 2023-08-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 114 | 114 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 96 | 96 | $0 |
Insurance plans in this area (ZIP 60523)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | IL | |
| Nurse Practitioner | IL | |
| Emergency Medicine | IL | |
| Emergency Medicine | MA | |
| Emergency Medicine | FL | |
| Emergency Medicine | IL | |
| Emergency Medicine | IL | |
| - | IL | |
| Emergency Medicine | IL | |
| Nurse Practitioner | IL |
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