PAUL CHARLES GRIMM (MD) – Pediatric Nephrology Physician, NPI 1184705386
Pediatric Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for PAUL CHARLES GRIMM (MD)
725 WELCH RD
PALO ALTO, CA 943041601
Phone: (650) 497-8000
Type: Location
300 Pasteur Dr
G306, MC5208
Stanford, CA 943052200
Phone: (650) 723-7903
Fax: (650) 498-6714
Type: Location
Stanford Hospital, 300, Pasteur Drive, Stanford, Palo Alto, Santa Clara County, California, 94305, United States
G306, MC5208
STANFORD, CA 943052200
Phone: (650) 723-7903
Fax: (650) 498-6714
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $21,472.
Total Amount is formed as General ($21,472) + Research ($0) + Ownership ($0) = $21,472.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: Amgen Inc. ($17,134).
Total Amount
$21,472
General + Research + Ownership
Payments
25
Total payment records
General Amount
$21,472
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $17,134 |
| Horizon Therapeutics plc | $4,004 |
| Alnylam Pharmaceuticals Inc. | $105 |
| RECORDATI_RARE_DISEASES_INC. | $89 |
| Bayer Healthcare Pharmaceuticals Inc. | $65 |
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: 2007-01-17
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 |
|---|---|---|---|---|
| I20070117000465 | I | Nephrology | CA | 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 94304)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MA | |
| - | CA | |
| - | CA | |
| Clinical Psychologist | CA | |
| Diagnostic Radiology | CO | |
| - | CA |
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