Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Aileen Yu-Hen Chang

Individual provider Internal Medicine Physician · NPI 1245557446

Aileen Yu-Hen Chang practises Internal Medicine in Washington, District of Columbia. Graduated from Columbia University College of Physicians and Surgeons in 2010, 16 years ago. Practices with Medical Faculty Associates, Inc, a 684-clinician group and accepts Medicare assignment. Licensed in District of Columbia.

Years since qualifying
16
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
DC
In the registry since
2010
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone: (202) 741-2222
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD043049 (DC)

Record details

NPI number1245557446
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedApril 27, 2010
Last updated in NPPESJanuary 14, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 2010 (16 years in practice)
Group practice Medical Faculty Associates, Inc — 684 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients68
Services billed 254 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $9,703 4 payments
Food and Beverage $219 1 payment · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $143 1 payment · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Medical Faculty Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 684 clinicians in the practice; 12 are shown here.

Other providers in Washington