MICHAEL WAYNE GREVENGOED (CNP) – Family Nurse Practitioner, NPI 1356837579
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,529 NURSE PRACTITIONER in IA
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Provider Addresses for MICHAEL WAYNE GREVENGOED (CNP)
6th Avenue, Doon, Lyon County, Iowa, 51235, United States
DOON, IA 512357726
Phone: (605) 496-1502
Type: Mailing
Sanford Sheldon Clinic, 800, Oak Street, Sheldon, O'Brien County, Iowa, 51201, United States
SHELDON, IA 512011242
Phone: (712) 324-5356
Fax: (712) 324-6515
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $14.
Total Amount is formed as General ($14) + Research ($0) + Ownership ($0) = $14.
Last reported payment date: 2024-05-29 • Largest payer in this snapshot: Conetic Solutions, Inc. ($14).
Total Amount
$14
General + Research + Ownership
Payments
1
Total payment records
General Amount
$14
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Conetic Solutions, Inc. | $14 |
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: 2019-06-17
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 |
|---|---|---|---|---|
| I20181204000268 | I | Nurse Practitioner | IA | TBD |
| I20190617001791 | I | Nurse Practitioner | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 51235)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | SD | |
| Family Practice | MN | |
| Nurse Practitioner | SD | |
| Nurse Practitioner | SD | |
| - | SD | |
| Nurse Practitioner | SD | |
| Nurse Practitioner | MN | |
| Orthopedic Surgery | SC | |
| Physician Assistant | MN | |
| Certified Registered Nurse Anesthetist (Crna) | SD |
Reviews
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