SON T. DINH (M.D.) – Nephrology Physician, NPI 1174564256
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,558 INTERNAL MEDICINE in CA
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Provider Addresses for SON T. DINH (M.D.)
Warner Avenue, Fountain Valley, Orange County, California, 92704-7096, United States
FOUNTAIN VALLEY, CA 927087510
Phone: (714) 486-2586
Fax: (714) 432-8885
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 43 Open Payments records for all available years, with a total value of $1,033.
Total Amount is formed as General ($1,033) + Research ($0) + Ownership ($0) = $1,033.
Last reported payment date: 2024-11-08 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($499).
Total Amount
$1,033
General + Research + Ownership
Payments
43
Total payment records
General Amount
$1,033
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-08
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2008-05-16
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 |
|---|---|---|---|---|
| I20080516000746 | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 4,275 | 400 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 877 | 361 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 553 | 68 | $0 |
| 99291 | Critical care, first 30-74 minutes | 399 | 90 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 369 | 279 | $0 |
Insurance plans in this area (ZIP 92708)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | CA | |
| Internal Medicine, Nephrology | CA |
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