LAUREN GREIFENBERG – Physician Assistant, NPI 1093576555
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,066 PHYSICIAN ASSISTANT in MI
Provider Addresses for LAUREN GREIFENBERG
300 LAFAYETTE AVE SE STE 2045
GRAND RAPIDS, MI 495034692
Phone:
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $496.
Total Amount is formed as General ($496) + Research ($0) + Ownership ($0) = $496.
Last reported payment date: 2024-11-21 • Largest payer in this snapshot: Lilly USA, LLC ($240).
Total Amount
$496
General + Research + Ownership
Payments
5
Total payment records
General Amount
$496
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $240 |
| Abbott Laboratories | $97 |
| Tandem Diabetes Care, Inc. | $95 |
| Dexcom, Inc. | $64 |
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: 2024-03-04
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 |
|---|---|---|---|---|
| I20240304003302 | I | Physician Assistant | 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 49503)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| - | MI | |
| - | MI | |
| N E U R O L O G Y | MI | |
| Physician Assistant | MI | |
| - | MI | |
| - | MI | |
| Physician Assistant | MI | |
| Nurse Practitioner | 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.