DR. KARL MICHAEL NAPEKOSKI (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1235372301
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
766 PATHOLOGY in IL
Provider Addresses for DR. KARL MICHAEL NAPEKOSKI (M.D.)
5201 Willow Springs Rd Ste 430
LA Grange Highlands, IL 605256538
Phone: (708) 482-3213
Type: Location
145 W BAILEY RD
NAPERVILLE, IL 605654199
Phone: (937) 416-8229
Type: Mailing
3815 HIGHLAND AVE
DOWNERS GROVE, IL 605151500
Phone: (630) 275-1027
Type: Location
Edward Hospital, 801, South Washington Street, Naperville, Naperville Township, DuPage County, Illinois, 60540, United States
NAPERVILLE, IL 605667060
Phone: (630) 355-0450
Fax: (630) 527-3911
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $4,774.
Total Amount is formed as General ($74) + Research ($4,700) + Ownership ($0) = $4,774.
Last reported payment date: 2023-09-20 • Largest payer in this snapshot: Endo Pharmaceuticals Inc. ($4,700).
Total Amount
$4,774
General + Research + Ownership
Payments
3
Total payment records
General Amount
$74
General payments
Research Amount
$4,700
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Endo Pharmaceuticals Inc. | $4,700 |
| LEICA MICROSYSTEMS INC. | $74 |
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: 2014-06-13
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 |
|---|---|---|---|---|
| I20140613001140 | I | Pathology | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 12,533 | 6,995 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 563 | 487 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 249 | 79 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 189 | 159 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 84 | 57 | $0 |
Insurance plans in this area (ZIP 60525)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | IL | |
| Physician Assistant | IL | |
| Physician Assistant | IL | |
| D E R M A T O L O G Y | IL | |
| Nurse Practitioner | WI | |
| Nurse Practitioner | IL | |
| - | IL | |
| D E R M A T O L O G Y | IL | |
| D E R M A T O L O G Y | IL | |
| Nurse Practitioner | IL |
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