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

Matthew Chang, DO

Individual provider Emergency Medicine Physician · NPI 1023279163

Matthew Chang, DO practises Emergency Medicine in New York, New York. Graduated from Western University of Health Sciences College of Dental Med in 2008, 18 years ago. Practices with Canton-Potsdam Hospital, a 239-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
18
Trained at
Western University of Health Sciences College of Dental Med
Licensed in
NY
In the registry since
2008
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

165 Mulberry St Apt 12
New York, NY 10013-3753 Not confirmed with CMS for 18 years — call before visiting
Phone: (917) 447-7651
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence INTERN (NY)

Record details

NPI number1023279163
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 20, 2008
Last updated in NPPESJune 20, 2008

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWESTERN UNIVERSITY OF HEALTH SCIENCES COLLEGE OF DENTAL MED
Graduated 2008 (18 years in practice)
Group practice Canton-Potsdam Hospital — 239 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients75
Services billed 85 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Food and Beverage $30 1 payment · a meal or drink at a meeting or visit, not a fee

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. Those with a page here are linked.

Colleagues at Canton-Potsdam Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 239 clinicians in the practice; 12 are shown here.

Other providers in New York