MARY MARGARET KELLER (APNP) – Nurse Practitioner, NPI 1992727259
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,035 NURSE PRACTITIONER in WI
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Provider Addresses for MARY MARGARET KELLER (APNP)
2514, South 102nd Street, West Allis, Milwaukee County, Wisconsin, 53227, United States
SUITE 120
WEST ALLIS, WI 532272142
Phone: (414) 777-5200
Fax: (414) 777-5210
Type: Mailing
West Kinnickinnic River Parkway, Southgate, Milwaukee, Milwaukee County, Wisconsin, 53215, United States
MILWAUKEE, WI 532153660
Phone: (414) 383-7744
Fax: (414) 383-8089
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 140 Open Payments records for all available years, with a total value of $3,204.
Total Amount is formed as General ($3,204) + Research ($0) + Ownership ($0) = $3,204.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Amgen Inc. ($461).
Total Amount
$3,204
General + Research + Ownership
Payments
140
Total payment records
General Amount
$3,204
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $461 |
| AstraZeneca Pharmaceuticals LP | $336 |
| Takeda Pharmaceuticals U.S.A., Inc. | $318 |
| Novartis Pharmaceuticals Corporation | $190 |
| Daiichi Sankyo Inc. | $123 |
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: 2010-07-01
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 |
|---|---|---|---|---|
| I20100701000362 | I | Nurse Practitioner | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 192 | 58 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 52 | 17 | $0 |
Insurance plans in this area (ZIP 53227)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | WI | |
| N E P H R O L O G Y | WI | |
| Nephrology, Internal Medicine | WI | |
| - | WI | |
| Nephrology, Internal Medicine | WI | |
| Nephrology, Internal Medicine | WI | |
| Nurse Practitioner | WI | |
| Nephrology, Internal Medicine | WI | |
| Nurse Practitioner | WI | |
| Nurse Practitioner | WI |
Reviews
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