DR. ANDY HUY NGUYEN (D.O.) – Internal Medicine Physician, NPI 1053748459
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. ANDY HUY NGUYEN (D.O.)
PO BOX 231189
ENCINITAS, CA 920231189
Phone: (760) 230-2251
Type: Mailing
354 SANTA FE DR
ENCINITAS, CA 920245142
Phone: (760) 230-2251
Type: Location
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 $151.
Total Amount is formed as General ($151) + Research ($0) + Ownership ($0) = $151.
Last reported payment date: 2024-11-14 • Largest payer in this snapshot: Amgen Inc. ($61).
Total Amount
$151
General + Research + Ownership
Payments
7
Total payment records
General Amount
$151
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $61 |
| ABBVIE INC. | $47 |
| OPKO Pharmaceuticals, LLC | $24 |
| Bayer Healthcare Pharmaceuticals Inc. | $18 |
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: 2025-11-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 9 Medicare enrollment records; no due dates published yet.
Enrollment records
9
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 |
|---|---|---|---|---|
| I20140206001632 | I | Internal Medicine | TX | TBD |
| I20161018002357 | I | Internal Medicine | CA | TBD |
| I20250530003257 | I | Internal Medicine | CO | TBD |
| I20250605000382 | I | Internal Medicine | IL | TBD |
| I20250605002551 | I | Internal Medicine | OK | TBD |
| I20250609002407 | I | Internal Medicine | WA | TBD |
| I20250616003676 | I | Internal Medicine | MO | TBD |
| I20250917002667 | I | Internal Medicine | WY | TBD |
| I20251107003328 | I | Internal Medicine | TN | 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 |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 202 | 15 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 140 | 63 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 24 | 19 | $0 |
Insurance plans in this area (ZIP 92023)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | AZ | |
| - | NC | |
| Internal Medicine | TX | |
| - | TX | |
| - | TX | |
| - | LA | |
| Family Practice | NM | |
| - | KS | |
| Hospitalist, Internal Medicine | NM | |
| Internal Medicine, Hospitalist | UT |
Reviews
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