Charles W. Chia, M.D.
Dermatology Physician · Thousand Oaks, CA
Charles W. Chia, M.D. is a dermatology physician with a practice address in Thousand Oaks, California, and NPI 1841229069, issued on Jul 1, 2006. Check the license (California A108491, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles W. Chia
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A108491 CA
Self-reported in NPPES; status is on the state search - Practice location
- 145 Hodencamp RD, Thousand Oaks, CA 91360
- Phone
- (818) 719-4643
- Enumerated
- Jul 1, 2006
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 121774 AZ
- Medicare enrollment
- Enrolled (PECOS I20091009000579); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 2005
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 145 Hodencamp RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Henry Cruz, PTPhysical Therapist1649493800
- Vanessa Damiani, P.T.Physical Therapist1457786907
- Melani Danoukh, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1447066386
- Michelle Gonzales, D.P.T., A.T.C.Physical Therapist1548714652
- Emma Hess, LCSWClinical Social Worker1093272817
- Eva LoefflerMental Health Counselor1922723030
Verify Charles W. Chia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A108491Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average dermatology physician in 2024
1,936 Medicare Part D claims for 767 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Fluorouracil316 claims
- Clobetasol Propionate221 claims
- Tacrolimus144 claims
- Triamcinolone Acetonide130 claims
- Betamethasone Diprop Augmented112 claims
- Fluocinonide102 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $126.17
3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles W. Chia among 2,083 dermatology physician records in California
Charles W. Chia, M.D. is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2005 · median 2006 among the 1,450 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Thousand Oaks → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Christine Cole, M.D.Thousand Oaks, CA 913601770796708
- Bridget Hartman, M.D.Thousand Oaks, CA 913601447541511
- Andrew Kaufman, MDThousand Oaks, CA 913601740214378
- Comron Maleki, MDThousand Oaks, CA 913601730113408
- Nima Milani-Nejad, M.D.Thousand Oaks, CA 913601356703540
- Seth Stevens, M.D.Thousand Oaks, CA 913601003060492
- Mira Stotland, M.DThousand Oaks, CA 913601104023837
- Judith Feldman, MDWestlake Village, CA 913611245295575
Common questions
What is Charles W. Chia, M.D.'s NPI number?
Charles W. Chia, M.D.'s National Provider Identifier (NPI) is 1841229069, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles W. Chia, M.D. located?
The NPPES record lists a practice address at 145 Hodencamp RD, Thousand Oaks, CA, 91360. Phone: (818) 719-4643. Providers update this record themselves, so call before visiting.
How can I verify Charles W. Chia, M.D.'s license?
NPPES lists California license number A108491, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles W. Chia, M.D. prescribe under Medicare Part D?
In 2024, Charles W. Chia, M.D. had 1,936 Medicare Part D claims for 767 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.