DR. DIANA OKUNIEWSKI (D.O.) – Obstetrics & Gynecology Physician, NPI 1184831547
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. DIANA OKUNIEWSKI (D.O.)
1445 Sheldon Rd
Suite 301
Grand Haven, MI 494172480
Phone: (616) 847-2500
Fax: (616) 847-6719
Type: Location
Wisconsin Avenue, Grand Haven, Ottawa County, Michigan, 49417, United States
SUITE 103
GRAND HAVEN, MI 494172472
Phone: (616) 844-4528
Fax: (616) 847-5608
Type: Mailing
1445, Sheldon Road, Grand Haven, Ottawa County, Michigan, 49417, United States
SUITE 301
GRAND HAVEN, MI 494172480
Phone: (616) 847-2500
Fax: (616) 847-6719
Type: Location
215 E MANSION ST STE 3D
MARSHALL, MI 490681167
Phone: (269) 558-0702
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2024-10-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20140131001431 | I | Obstetrics/Gynecology | MI | TBD |
| I20210712001809 | I | Obstetrics/Gynecology | RI | TBD |
| I20241022000922 | I | Obstetrics/Gynecology | OH | 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 49417)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Sleep Medicine, Internal Medicine | MI | |
| Physician Assistant | MI | |
| Physician Assistant | MI | |
| Nurse Practitioner | MI | |
| Physician Assistant | MI | |
| Thoracic Surgery, General Surgery | MI | |
| Cardiovascular Disease (Cardiology) | MI | |
| Pulmonary Disease, Internal Medicine | MI | |
| Pulmonary Disease, Sleep Medicine | MI | |
| - | IL |
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