KARL A GREENE (MD) – Neurological Surgery Physician, NPI 1376535492
Neurological Surgery Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
155 NEUROSURGERY in WI
Provider Addresses for KARL A GREENE (MD)
5320 WEST MICHAELS DRIVE
APPLETON, WI 54913
Phone: (920) 882-8200
Fax: (920) 882-8210
Type: Mailing
9555 76TH ST
PLEASANT PRAIRIE, WI 531581984
Phone: (262) 577-8000
Fax: (262) 577-8869
Type: Mailing
1821 S WEBSTER AVE
GREEN BAY, WI 543012253
Phone: (920) 272-3450
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $394,468.
Total Amount is formed as General ($394,468) + Research ($0) + Ownership ($0) = $394,468.
Last reported payment date: 2024-11-25 • Largest payer in this snapshot: Medtronic, Inc. ($394,468).
Total Amount
$394,468
General + Research + Ownership
Payments
8
Total payment records
General Amount
$394,468
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $394,468 |
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: 2023-03-08
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 |
|---|---|---|---|---|
| I20040628001077 | I | Neurosurgery | WI | TBD |
| I20230308000557 | I | Neurosurgery | SD | 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 54913)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | SD | |
| P S Y C H I A T R Y | SD | |
| General Surgery | SD | |
| General Surgery | SD | |
| P S Y C H I A T R Y | NE | |
| P S Y C H I A T R Y | SD | |
| - | SD | |
| Qualified Audiologist | SD | |
| Hand Surgery, Orthopedic Surgery | SD | |
| Nurse Practitioner | SD |
Reviews
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