MR. DAT TAN HUYNH (M.D.) – Internal Medicine Physician, NPI 1033298963
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for MR. DAT TAN HUYNH (M.D.)
1661, Burdette Drive, San Jose, Santa Clara County, California, 95122, United States
SUITE N
SAN JOSE, CA 951211613
Phone: (408) 270-4582
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 81 Open Payments records for all available years, with a total value of $3,748.
Total Amount is formed as General ($3,748) + Research ($0) + Ownership ($0) = $3,748.
Last reported payment date: 2024-11-19 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($901).
Total Amount
$3,748
General + Research + Ownership
Payments
81
Total payment records
General Amount
$3,748
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $901 |
| Teva Pharmaceuticals USA, Inc. | $844 |
| GlaxoSmithKline, LLC. | $554 |
| Alkermes, Inc. | $205 |
| Janssen Pharmaceuticals, Inc | $150 |
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: 2011-12-16
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 |
|---|---|---|---|---|
| I20111216000736 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 271 | 117 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 124 | 88 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 101 | 101 | $0 |
| G0446 | Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | 100 | 100 | $0 |
| G0442 | Annual alcohol misuse screening, 5 to 15 minutes | 100 | 100 | $0 |
Insurance plans in this area (ZIP 95121)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | MI | |
| Internal Medicine | CA | |
| General Practice | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Internal Medicine | HI | |
| Family Practice | SC | |
| Physician Assistant | CA | |
| Internal Medicine | CA | |
| Physician Assistant | CA |
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