Charles Chia, M.D.
NPI 1841229069 · Dermatology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Chia, M.D. is a Dermatology Physician provider in Thousand Oaks, CA (NPI 1841229069).
Provider details
- NPI number
- 1841229069
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A108491 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluorouracil | 316 | 252 |
| Clobetasol Propionate | 221 | 95 |
| Tacrolimus | 144 | 89 |
| Triamcinolone Acetonide | 130 | 62 |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 112 | 47 |
| Fluocinonide | 102 | 40 |
| Metronidazole | 96 | 48 |
| Secukinumabbrand: Cosentyx Sensoready (2 Pens) |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$126 across 3 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
- 2006-07-01
- Last updated
- 2021-11-30
Frequently asked questions
- What is Charles Chia's NPI number?
- Charles Chia's National Provider Identifier (NPI) is 1841229069, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Chia's specialty?
- Charles Chia is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Chia located?
- Charles Chia's practice location on file with NPPES is 145 Hodencamp Rd, Thousand Oaks, CA 91360-5810.
- What is Charles Chia's phone number?
- The practice phone number listed in the NPPES registry for Charles Chia is (818) 719-4643.
- Does Charles Chia accept Medicare?
- Charles Chia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Chia's NPI active?
- Yes — Charles Chia's NPI (1841229069) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.