SAMUEL S LIU (MD) – Nephrology Physician, NPI 1912935628
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for SAMUEL S LIU (MD)
210 W Bonita Ave Ste 140
Pomona, CA 917671866
Phone: (951) 231-0738
Fax: (626) 698-4515
Type: Location
160, East Artesia Street, Pomona, Los Angeles County, California, 91767, United States
SUITE 225
POMONA, CA 917672900
Phone: (951) 231-0738
Fax: (626) 698-4515
Type: Location
Pomona Post Office, West Monterey Avenue, Edison Historic District, Pomona, Los Angeles County, California, 91766, United States
POMONA, CA 917692306
Phone: (626) 337-2265
Fax: (626) 337-6625
Type: Mailing
11480 BROOKSHIRE AVE STE 302
DOWNEY, CA 902415024
Phone: (562) 862-8184
Fax: (562) 862-8184
Type: Location
1122 VOLANTE DR
ARCADIA, CA 910076052
Phone: (951) 231-0738
Fax: (626) 337-6625
Type: Mailing
11480 BROOKSHIRE AVE STE 105
DOWNEY, CA 902415020
Phone: (562) 862-8184
Fax: (562) 862-8184
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 20 Open Payments records for all available years, with a total value of $404.
Total Amount is formed as General ($404) + Research ($0) + Ownership ($0) = $404.
Last reported payment date: 2024-11-18 • Largest payer in this snapshot: Amgen Inc. ($152).
Total Amount
$404
General + Research + Ownership
Payments
20
Total payment records
General Amount
$404
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $152 |
| Travere Therapeutics, Inc. | $105 |
| Ardelyx, Inc. | $100 |
| AstraZeneca Pharmaceuticals LP | $23 |
| Aurinia Pharma U.S., 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: 2005-12-01
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 |
|---|---|---|---|---|
| I20051201000591 | 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.
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 | 516 | 111 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 391 | 70 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 246 | 47 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 113 | 85 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 91 | 61 | $0 |
Insurance plans in this area (ZIP 91767)
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