TAMUYEN NGUYEN (M.D.) – Dermatology Physician, NPI 1710041686
Dermatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,140 DERMATOLOGY in CA
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Provider Addresses for TAMUYEN NGUYEN (M.D.)
1310, San Bernardino Road, Upland, San Bernardino County, California, 91786, United States
SUITE 207
UPLAND, CA 917864979
Phone: (909) 946-8600
Fax: (909) 946-8604
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 127 Open Payments records for all available years, with a total value of $2,587.
Total Amount is formed as General ($2,587) + Research ($0) + Ownership ($0) = $2,587.
Last reported payment date: 2024-12-21 • Largest payer in this snapshot: ABBVIE INC. ($647).
Total Amount
$2,587
General + Research + Ownership
Payments
127
Total payment records
General Amount
$2,587
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $647 |
| Incyte Corporation | $320 |
| Janssen Biotech, Inc. | $302 |
| Dermavant Sciences, Inc. | $143 |
| Biofrontera Inc. | $84 |
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: 2004-04-12
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 |
|---|---|---|---|---|
| I20040412001411 | I | Dermatology | 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 | 338 | 148 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 58 | 58 | $0 |
| 11102 | Biopsy of related skin growth, first growth | 48 | 40 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 13 | 12 | $0 |
| 17110 | Destruction of skin growth, 1-14 growths | 12 | 11 | $0 |
Insurance plans in this area (ZIP 91786)
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