Brandon Fen Chang, MD
Emergency Medicine Physician · Chicago, IL
Brandon Fen Chang, MD is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1538622287, issued on Apr 10, 2019. Check the license (Illinois 125.077096, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brandon Fen Chang
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 125.077096 IL
Self-reported in NPPES; status is on the state search - Practice location
- 820 S Wood St Ste 100, Chicago, IL 60612
- Phone
- (312) 996-2933
- Enumerated
- Apr 10, 2019
- Record last updated
- Jun 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (312) 996-3050
- Medicare enrollment
- Enrolled (PECOS I20220609001107); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2019
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 820 S Wood St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susana Acosta Nunez De Villavicencio, MDSurgery Physician1972451193
Verify Brandon Fen Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.077096Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average emergency medicine physician in 2024
219 Medicare Part D claims for 168 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 32 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen26 claims
- Cyclobenzaprine Hcl20 claims
- Ondansetron Odt17 claims
- Amoxicillin-Clavulanate Potass13 claims
- Cefpodoxime Proxetil13 claims
- Prednisone13 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.45
1 payment: food and beverage; the largest payer was Pfizer Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Aurora Emergency Physicians LLCAurora, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brandon Fen Chang among 3,291 emergency medicine physician records in Illinois
Brandon Fen Chang, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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 74% of them.
- NPI issued2019 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2012 among the 1,867 with a school on file
- Record last updated2020 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joseph Brawka, M.D.Chicago, IL 606121174599112
- Christopher Caudill, MDChicago, IL 606121013993104
- Galeta Clayton, M.D.Chicago, IL 606121588630743
- Jennifer Fleming, M.D.Chicago, IL 606121912973975
- Jeffrey Grassle, M.D.Chicago, IL 606121205802147
- Marilyn Hallock, M.D.Chicago, IL 606121336110691
- Mumtaz Husain, M.D.Chicago, IL 606121891761953
- Paula Oldeg, M.D.Chicago, IL 606121568438687
Common questions
What is Brandon Fen Chang, MD's NPI number?
Brandon Fen Chang, MD's National Provider Identifier (NPI) is 1538622287, issued on Apr 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Brandon Fen Chang, MD located?
The NPPES record lists a practice address at 820 S Wood St Ste 100, Chicago, IL, 60612. Phone: (312) 996-2933. Providers update this record themselves, so call before visiting.
How can I verify Brandon Fen Chang, MD's license?
NPPES lists Illinois license number 125.077096, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brandon Fen Chang, MD prescribe under Medicare Part D?
In 2024, Brandon Fen Chang, MD had 219 Medicare Part D claims for 168 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Brandon Fen Chang, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.