GEORGE LAI (M.D.) – Nephrology Physician, NPI 1043398803
Nephrology Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for GEORGE LAI (M.D.)
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 945454203
Phone: (510) 454-1000
Type: Mailing
Kaiser Permanente Hayward-Sleepy Hollow Medical Offices, 27303, Sleepy Hollow Avenue, Hayward, Alameda County, California, 94545, United States
HAYWARD, CA 945454203
Phone: (510) 454-1000
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $465.
Total Amount is formed as General ($465) + Research ($0) + Ownership ($0) = $465.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Gilead Sciences, Inc. ($144).
Total Amount
$465
General + Research + Ownership
Payments
7
Total payment records
General Amount
$465
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Gilead Sciences, Inc. | $144 |
| Amgen Inc. | $126 |
| Bayer Healthcare Pharmaceuticals Inc. | $125 |
| Madrigal Pharmaceuticals | $27 |
| AIMMUNE THERAPEUTICS, INC. | $22 |
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: 2011-04-06
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 |
|---|---|---|---|---|
| I20110406000623 | 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 94545)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | DC | |
| Colorectal Surgery (Proctology), General Surgery | LA | |
| - | CA | |
| N E U R O S U R G E R Y | MA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Emergency Medicine | CA | |
| - | MA | |
| Emergency Medicine | CA |
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