Charlotte Tsai, MD
NPI 1427271170 · Dermatology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Tsai, MD is a Dermatology Physician provider in Portland, OR (NPI 1427271170).
Provider details
- NPI number
- 1427271170
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A104070 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 188 | 91 |
| Fluorouracil | 127 | 107 |
| Triamcinolone Acetonide | 108 | 60 |
| Methotrexate Sodiumbrand: Methotrexate | 90 | 24 |
| Doxycycline Monohydrate | 80 | 24 |
| Ketoconazole | 73 | 29 |
| Betamethasone Dipropionate | 61 | 26 |
| Secukinumab |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-11
- Last updated
- 2010-08-25
Frequently asked questions
- What is Charlotte Tsai's NPI number?
- Charlotte Tsai's National Provider Identifier (NPI) is 1427271170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Tsai's specialty?
- Charlotte Tsai is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Tsai located?
- Charlotte Tsai's practice location on file with NPPES is 3600 N Interstate Ave, Portland, OR 97227-1106.
- What is Charlotte Tsai's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Tsai is (503) 331-3060.
- Does Charlotte Tsai accept Medicare?
- Charlotte Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Tsai's NPI active?
- Yes — Charlotte Tsai's NPI (1427271170) is active in the NPPES registry as of the last update on 2010-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.