Carl J. Chang, M.D.
Dermatology Physician · Arcadia, CA
Carl J. Chang, M.D. is a dermatology physician with a practice address in Arcadia, California, and NPI 1891983078, issued on Oct 12, 2007. Check the license (California A91493, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carl J. Chang
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A91493 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 N Santa Anita Ave, Arcadia, CA 91006
- Phone
- (626) 821-5998
- Enumerated
- Oct 12, 2007
- Record last updated
- Jul 13, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (626) 821-5990
- Medicare enrollment
- Enrolled (PECOS I20110527000460); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2003
- Entity
- Type 1 · individual
Also registered at 100 N Santa Anita Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dong Chang, M.D., INC.Dermatopathology Physician1235136243
- Jeany Cheng, N.P.Hematology & Oncology Physician1205855772
- Jaylynna HuaPhysician Assistant1124973466
- Lilian Hwang, PA-CMedical Physician Assistant1619321858
- Dana Kang, MDSpecialist1982803813
- Alexis ThamPhysician Assistant1043979461
Verify Carl J. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91493Check 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% more Medicare Part D claims than the average dermatology physician in 2024
811 Medicare Part D claims for 282 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Triamcinolone Acetonide144 claims
- Ketoconazole136 claims
- Clobetasol Propionate44 claims
- Prednisone34 claims
- Fluorouracil29 claims
- Betamethasone Dipropionate22 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.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $410.41
13 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. 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.
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
Other dermatology physician records in California
- Sam Abaza, M.D.Diamond Bar, CA1831148501
- Farah Abdulla, MDDuarte, CA1093934390
- Robert Abergel, M.D.Santa Monica, CA1841565843
- Karen Abisogun, MDLos Angeles, CA1124474515
- Glynis Ablon, M.D.Manhattan Beach, CA1144292889
- Arthur Abrams, MDMountain View, CA1518093178
- Payam Abrishami, MDAgoura Hills, CA1447288147
- Aseel Abu-NasserRedding, CA1609641711
- Rachel Abuav, M.D.Beverly Hills, CA1356481733
- Boya Abudu, MD, MPHSacramento, CA1336608637
Common questions
What is Carl J. Chang, M.D.'s NPI number?
Carl J. Chang, M.D.'s National Provider Identifier (NPI) is 1891983078, issued on Oct 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Carl J. Chang, M.D. located?
The NPPES record lists a practice address at 100 N Santa Anita Ave, Arcadia, CA, 91006. Phone: (626) 821-5998. Providers update this record themselves, so call before visiting.
How can I verify Carl J. Chang, M.D.'s license?
NPPES lists California license number A91493, 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 Carl J. Chang, M.D. prescribe under Medicare Part D?
In 2024, Carl J. Chang, M.D. had 811 Medicare Part D claims for 282 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Carl J. Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.