MAREK KRYSZTOFIAK – Internal Medicine Physician, NPI 1174774426
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,828 INTERNAL MEDICINE in IL
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Provider Addresses for MAREK KRYSZTOFIAK
Madison Manor 2, 920, West Madison Street, Greektown, Near West Side, Chicago, Cook County, Illinois, 60607, United States
UNIT D8
CHICAGO, IL 606072718
Phone:
Type: Mailing
Mercy Hospital & Medical Center, 2525, South Michigan Avenue, Near South Side, Chicago, Cook County, Illinois, 60616, United States
MERCY HOSPITAL/DEPARTMENT OF INTERNAL MEDICINE
CHICAGO, IL 606162333
Phone: (312) 567-2000
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: 2012-08-09
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 |
|---|---|---|---|---|
| I20120809000900 | I | Internal Medicine | FL | 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 | 564 | 180 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 103 | 48 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 97 | 91 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 71 | 71 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 53 | 52 | $0 |
Insurance plans in this area (ZIP 60607)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | FL | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Physician Assistant | FL | |
| Hospitalist, Family Practice | FL | |
| Internal Medicine | FL | |
| Internal Medicine | FL | |
| Family Practice | KY | |
| Nurse Practitioner | FL | |
| Internal Medicine | FL |
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