MACKENZIE LOUISE GREISCH – Certified Registered Nurse Anesthetist, NPI 1104524115
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,141 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in WI
Provider Addresses for MACKENZIE LOUISE GREISCH
2900 W Oklahoma Ave
Milwaukee, WI 532154330
Phone: (414) 649-6000
Type: Location
1726 Shawano Ave
Green Bay, WI 543033216
Phone: (920) 498-4200
Type: Location
800 Algoma Blvd
Oshkosh, WI 549018610
Phone: (920) 424-3114
Type: Location
2521 S HARMON ST
APPLETON, WI 549152504
Phone: (920) 850-7382
Type: Mailing
835 S VAN BUREN ST
GREEN BAY, WI 543013526
Phone: (920) 433-0111
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $16.
Total Amount is formed as General ($16) + Research ($0) + Ownership ($0) = $16.
Last reported payment date: 2024-09-10 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($16).
Total Amount
$16
General + Research + Ownership
Payments
1
Total payment records
General Amount
$16
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $16 |
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: 2023-07-19
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 |
|---|---|---|---|---|
| I20230719002806 | I | Certified Registered Nurse Anesthetist (Crna) | WI | 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 53215)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| - | MI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | VA | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.