MARGARET HARTIG – Certified Registered Nurse Anesthetist, NPI 1225120033
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,265 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in IL
Provider Addresses for MARGARET HARTIG
2800 W 95th St
Evergreen Park, IL 608052701
Phone: (708) 422-6200
Type: Location
1740 W Taylor St
Chicago
Chicago, IL 606127232
Phone: (866) 600-2273
Type: Location
676 N SAINT CLAIR ST STE 10-548
CHICAGO, IL 606112927
Phone: (312) 695-4387
Fax: (312) 695-9013
Type: Location
2014, North Hoyne Avenue, Bucktown, Wicker Park, Chicago, West Chicago Township, Cook County, Illinois, 60647, United States
CHICAGO, IL 60647
Phone: (773) 401-2731
Fax: (312) 275-8596
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: 2025-12-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 6 Medicare enrollment records; no due dates published yet.
Enrollment records
6
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 |
|---|---|---|---|---|
| I20081209000172 | I | Certified Registered Nurse Anesthetist (Crna) | IL | TBD |
| I20240604000902 | I | Certified Registered Nurse Anesthetist (Crna) | VA | TBD |
| I20240612004039 | I | Certified Registered Nurse Anesthetist (Crna) | AR | TBD |
| I20241211001872 | I | Certified Registered Nurse Anesthetist (Crna) | MA | TBD |
| I20250429002924 | I | Certified Registered Nurse Anesthetist (Crna) | MO | TBD |
| I20251209002537 | I | Certified Registered Nurse Anesthetist (Crna) | PA | 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 |
|---|---|---|---|---|
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 40 | 40 | $0 |
| 00142 | Anesthesia for lens surgery | 19 | 19 | $0 |
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 16 | 16 | $0 |
Insurance plans in this area (ZIP 60805)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | RI | |
| A N E S T H E S I O L O G Y | VA | |
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | RI | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| A N E S T H E S I O L O G Y | RI | |
| Certified Registered Nurse Anesthetist (Crna) | RI | |
| Certified Registered Nurse Anesthetist (Crna) | RI | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA |
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