LINH L THONG (M.D.) – Nephrology Physician, NPI 1154510386
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
Provider Addresses for LINH L THONG (M.D.)
705 W LA VETA AVE STE 107
ORANGE, CA 928684447
Phone: (714) 639-4901
Fax: (714) 771-5389
Mailing address matches the actual address.
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 $43.
Total Amount is formed as General ($43) + Research ($0) + Ownership ($0) = $43.
Last reported payment date: 2023-11-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($29).
Total Amount
$43
General + Research + Ownership
Payments
3
Total payment records
General Amount
$43
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $29 |
| 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: 2011-10-07
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 |
|---|---|---|---|---|
| I20111007000238 | 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 | 383 | 125 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 250 | 120 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 154 | 93 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 120 | 19 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 83 | 65 | $0 |
Insurance plans in this area (ZIP 92868)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | CA | |
| - | CA | |
| Nephrology, Internal Medicine | CA | |
| Nephrology, Internal Medicine | CA | |
| Nurse Practitioner | CA |
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