MICHAEL HARRIS (MD) – Internal Medicine Physician, NPI 1083716476
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,824 INTERNAL MEDICINE in IL
Provider Addresses for MICHAEL HARRIS (MD)
2525 S Michigan Ave
Chicago, IL 606162315
Phone: (312) 567-2000
Fax: (312) 328-7724
Type: Location
Mercy Hospital & Medical Center, 2525, South Michigan Avenue, Near South Side, Chicago, Cook County, Illinois, 60616, United States
CHICAGO, IL 606162315
Phone: (312) 567-2000
Fax: (312) 328-7724
Type: Mailing
Holy Family Hospital, 200, Health Care Drive, Greenville, Bond County, Illinois, 62246, United States
GREENVILLE, IL 622461154
Phone: (618) 664-1230
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: 2004-05-12
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 |
|---|---|---|---|---|
| I20040512000036 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 408 | 208 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 294 | 277 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 77 | 73 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 75 | 68 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 60 | 59 | $0 |
Insurance plans in this area (ZIP 60616)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IL | |
| Internal Medicine | IL | |
| Family Practice, Hospitalist | WI | |
| H O S P I T A L I S T | IL | |
| Physician Assistant | IL | |
| Family Practice, Hospitalist | MO | |
| Physician Assistant | MO | |
| H O S P I T A L I S T | IL | |
| Nurse Practitioner | IL | |
| H O S P I T A L I S T | OK |
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