STEPHEN LUI (M.D.) – Nephrology Physician, NPI 1891770384
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for STEPHEN LUI (M.D.)
11180 Warner Ave Ste 353
Fountain Valley, CA 927087516
Phone: (714) 406-0185
Fax: (310) 763-7573
Type: Location
18785 Brookhurst St Ste 200
Fountain Valley, CA 927087300
Phone: (714) 824-2610
Fax: (434) 423-4550
Type: Location
1974 Santa Fe Ave
Long Beach, CA 908104064
Phone: (562) 595-9799
Fax: (434) 423-4550
Type: Location
31001 Rancho Viejo Rd Ste 100A
San Juan Capistrano, CA 926758704
Phone: (714) 824-2610
Fax: (434) 423-4550
Type: Location
Martin Luther King Junior Boulevard, Lynwood, Los Angeles County, California, 90262, United States
SUITE 5
LYNWOOD, CA 902623509
Phone: (310) 763-7504
Fax: (310) 763-7573
Type: Location
PO BOX 10693
NEWPORT BEACH, CA 926585005
Phone: (310) 763-7504
Fax: (310) 763-7573
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $66.
Total Amount is formed as General ($66) + Research ($0) + Ownership ($0) = $66.
Last reported payment date: 2024-10-08 • Largest payer in this snapshot: KOELIS Inc. ($29).
Total Amount
$66
General + Research + Ownership
Payments
3
Total payment records
General Amount
$66
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| KOELIS Inc. | $29 |
| Novo Nordisk Inc | $23 |
| Calliditas Therapeutics US Inc. | $14 |
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: 2005-07-29
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20050729000566 | 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 |
|---|---|---|---|---|
| 90966 | Home dialysis services per month (20 years or older) | 73 | 16 | $0 |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | 62 | 37 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 60 | 27 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 55 | 36 | $0 |
| 80048 | Blood test, basic group of blood chemicals (calcium, total) | 39 | 21 | $0 |
Insurance plans in this area (ZIP 92708)
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Provider's Procedures
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