KAREN O'MARA (D.O.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1235112269
Critical Care Medicine (Internal Medicine) Physician
Main info
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Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for KAREN O'MARA (D.O.)
Little Company of Mary Hospital, 2800, West 95th Street, Evergreen Park, Worth Township, Cook County, Illinois, 60805, United States
EVERGREEN PARK, IL 60805
Phone: (708) 422-4221
Fax: (708) 422-4415
Type: Location
4928, South Ellis Avenue, North Kenwood, Kenwood, Chicago, Hyde Park Township, Cook County, Illinois, 60615, United States
CHICAGO, IL 606152708
Phone: (708) 422-4221
Fax: (708) 422-4415
Type: Mailing
2800 W 95th St
Evergreen Park, IL 60805
Phone: (708) 422-4221
Fax: (708) 422-4415
Type: Location
29373 NETWORK PL
CHICAGO, IL 606731293
Phone: (847) 390-5900
Type: Mailing
9555 S 52ND AVE
OAK LAWN, IL 604533054
Phone: (708) 684-6867
Fax: (708) 684-6869
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: 2023-04-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20220324002184 | I | Emergency Medicine | KS | TBD |
| I20230424000860 | I | Internal 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60805)
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