Joshua Andrew Chang, M.D.
Dermatology Physician · Allentown, PA
Joshua Andrew Chang, M.D. is a dermatology physician with a practice address in Allentown, Pennsylvania, and NPI 1205399680, issued on Apr 11, 2019. Check the license (Pennsylvania MD479729, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Joshua Andrew Chang
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- MD479729 PA
Self-reported in NPPES; status is on the state search - Practice location
- 250 Centronia Road, Allentown, PA 18104
- Phone
- (501) 686-5162
- Enumerated
- Apr 11, 2019
- Record last updated
- Aug 31, 2023
- Medicare enrollment
- Enrolled (PECOS I20250915001889); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 681 in Pennsylvania → Look up another NPI →
Verify Joshua Andrew Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD479729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average dermatology physician in 2024
376 Medicare Part D claims for 134 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Ketoconazole56 claims
- Triamcinolone Acetonide40 claims
- Doxycycline Hyclate33 claims
- Clobetasol Propionate29 claims
- Fluorouracil28 claims
- Minoxidil27 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: $551.81
27 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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 GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joshua Andrew Chang among 681 dermatology physician records in Pennsylvania
Joshua Andrew Chang, M.D. is one of 681 dermatology physician records with a practice address in Pennsylvania. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2019 · median 2007 among the 485 with a school on file
- Record last updated2023 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Pennsylvania
There are 681 dermatology physician records in Pennsylvania.
All 681 in Pennsylvania → Every provider in Allentown → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Johannah Valentine, M.D.Allentown, PA 181041508932294
- Marie Wagener, D.O.Allentown, PA 181041104054923
- Shannon Zullo, MDAllentown, PA 181041053936799
- Claire Dorfman, DOAllentown, PA 181031902291164
- Tanya Ermolovich, D.O.Allentown, PA 181031881681971
- Anthony Gust, M.D.Allentown, PA 181031215046354
- Joshua Levin, MDAllentown, PA 181031710047659
- Marc Levin, M.D.Allentown, PA 181031174510150
Common questions
What is Joshua Andrew Chang, M.D.'s NPI number?
Joshua Andrew Chang, M.D.'s National Provider Identifier (NPI) is 1205399680, issued on Apr 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Andrew Chang, M.D. located?
The NPPES record lists a practice address at 250 Centronia Road, Allentown, PA, 18104. Phone: (501) 686-5162. Providers update this record themselves, so call before visiting.
How can I verify Joshua Andrew Chang, M.D.'s license?
NPPES lists Pennsylvania license number MD479729, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joshua Andrew Chang, M.D. prescribe under Medicare Part D?
In 2024, Joshua Andrew Chang, M.D. had 376 Medicare Part D claims for 134 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.