FABIAN NALICHOWSKI (MD) – Internal Medicine Physician, NPI 1689297996
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,230 HOSPITALIST in MI
Provider Addresses for FABIAN NALICHOWSKI (MD)
826 W KING ST
OWOSSO, MI 488672120
Phone: (989) 729-4977
Fax: (989) 729-4062
Type: Mailing
1302 N Main St
Sandwich, IL 605482587
Phone: (815) 786-8484
Fax: (815) 981-7356
Type: Location
1 Kish Hospital Dr
Dekalb, IL 601159602
Phone: (815) 756-1521
Fax: (815) 748-5789
Type: Location
1 GENESYS PKWY
GRAND BLANC, MI 484398065
Phone:
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: 2025-09-05
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 |
|---|---|---|---|---|
| I20230921000378 | I | Internal Medicine | MI | TBD |
| I20250905000851 | 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 | 40 | 12 | $0 |
Insurance plans in this area (ZIP 48867)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | MI | |
| A N E S T H E S I O L O G Y | IL | |
| Internal Medicine | MI | |
| Nurse Practitioner | MI | |
| - | MI | |
| Physician Assistant | MI | |
| - | MI | |
| Nurse Practitioner | MI | |
| Internal Medicine, Geriatric Medicine | MI | |
| Physician Assistant | MI |
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