Thao Nguyen, M.D.
NPI 1255560017 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thao Nguyen, M.D. is a Internal Medicine Physician provider in Seattle, WA (NPI 1255560017).
Provider details
- NPI number
- 1255560017
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ML 60092968 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,086 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 867 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 576 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 370 | $88 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 366 | $54 |
| Biopsy of Related Skin Growth, First Growth11102 | 251 | $88 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 264 | 127 |
| Triamcinolone Acetonide | 233 | 177 |
| Clobetasol Propionate | 113 | 91 |
| Hydrocortisone | 111 | 72 |
| Mupirocin | 106 | 86 |
| Ciclopirox | 99 | 51 |
| Tretinoin | 84 | 48 |
| Doxycycline Hyclate | 76 | 53 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,115 across 107 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-14
- Last updated
- 2009-07-14
Frequently asked questions
- What is Thao Nguyen's NPI number?
- Thao Nguyen's National Provider Identifier (NPI) is 1255560017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thao Nguyen's specialty?
- Thao Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thao Nguyen located?
- Thao Nguyen's practice location on file with NPPES is 1959 Ne Pacific, Seattle, WA 98195-6421.
- What is Thao Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Thao Nguyen is (206) 680-1389.
- Does Thao Nguyen accept Medicare?
- Thao Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thao Nguyen's NPI active?
- Yes — Thao Nguyen's NPI (1255560017) is active in the NPPES registry as of the last update on 2009-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.