DR. MARGARET H ZABIEGA (M.D.) – Hospitalist Physician, NPI 1578564654
Hospitalist Physician
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Profile Insights
NPPES metrics only — not quality of care.
2,392 HOSPITALIST in IL
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Provider Addresses for DR. MARGARET H ZABIEGA (M.D.)
1860 PAYSPHERE CIR
CHICAGO, IL 606740018
Phone: (630) 469-9200
Type: Mailing
2100, Glenwood Avenue, Joliet, Will County, Illinois, 60435, United States
JOLIET, IL 60435
Phone: (815) 725-2121
Type: Location
1801 N Senate Blvd
Suite 203
Indianapolis, IN 462021228
Phone: (317) 962-5820
Fax: (317) 962-3916
Type: Location
PO BOX 713260
CHICAGO, IL 606771260
Phone: (630) 469-9200
Type: Mailing
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: 2006-12-14
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 |
|---|---|---|---|---|
| I20061214000407 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 871 | 340 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 303 | 281 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 276 | 180 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 155 | 143 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 138 | 133 | $0 |
Insurance plans in this area (ZIP 60674)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | IL | |
| Physician Assistant | IL | |
| Internal Medicine | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| Allergy/Immunology, Pediatric Medicine | IL |
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