WILLIAM J ZWIERS (CRNA) – Certified Registered Nurse Anesthetist, NPI 1013071372
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,692 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in MI
Loading map...
Provider Addresses for WILLIAM J ZWIERS (CRNA)
11120, Thornberry Drive, Freeland, Tittabawassee Township, Saginaw County, Michigan, 48623, United States
FREELAND, MI 486238528
Phone: (989) 573-1658
Type: Mailing
Covenant Medical Center Cooper, 700, Cooper Avenue, Saginaw, Saginaw County, Michigan, 48602, United States
SAGINAW, MI 486025383
Phone: (989) 583-6200
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $160.
Total Amount is formed as General ($160) + Research ($0) + Ownership ($0) = $160.
Last reported payment date: 2024-10-16 • Largest payer in this snapshot: Braintree Laboratories, Inc. ($28).
Total Amount
$160
General + Research + Ownership
Payments
8
Total payment records
General Amount
$160
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-16
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2005-05-10
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 |
|---|---|---|---|---|
| I20050510001128 | I | Certified Registered Nurse Anesthetist (Crna) | MI | 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 48623)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| Certified Registered Nurse Anesthetist (Crna) | PA | |
| - | MI | |
| A N E S T H E S I O L O G Y | WI | |
| A N E S T H E S I O L O G Y | MI | |
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| A N E S T H E S I O L O G Y | MI | |
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| - | MI |
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.