JOSHUA D ZIMMERMAN (MD) – Emergency Medicine Physician, NPI 1053653634
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,845 EMERGENCY MEDICINE in IL
Provider Addresses for JOSHUA D ZIMMERMAN (MD)
211 E ONTARIO ST STE 200
CHICAGO, IL 606113284
Phone: (312) 926-6486
Type: Mailing
211 E ONTARIO ST
SUITE 200
CHICAGO, IL 606113468
Phone: (312) 926-9512
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: 2024-02-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20170511002788 | I | Emergency Medicine | IL | TBD |
| I20200411000763 | I | Emergency Medicine | IN | TBD |
| I20240205002856 | I | Emergency Medicine | WI | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 316 | 310 | $0 |
| 99291 | Critical care, first 30-74 minutes | 100 | 99 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 74 | 74 | $0 |
Insurance plans in this area (ZIP 60611)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | IL | |
| Emergency Medicine | WI | |
| Emergency Medicine | WI | |
| Emergency Medicine | WI | |
| Emergency Medicine | WI | |
| Emergency Medicine | WI | |
| Emergency Medicine | WI | |
| Emergency Medicine | IL | |
| Pulmonary Disease, Critical Care (Intensivists), Emergency Medicine | AL | |
| Emergency Medicine | WI |
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