Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Alex Niu

Individual provider Internal Medicine Physician · NPI 1083020440

Alex Niu practises Hematology/Oncology in Buffalo, New York. Qualified in 2016, 10 years ago. Practices with Roswell Park Cancer Institute, a 489-clinician group and accepts Medicare assignment. Licensed in Minnesota and Ohio.

Years since qualifying
10
Licensed in
MN, OH
In the registry since
2014
Specialties on file
3
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Practice location Partly verified

Some contact details are missing from the federal record.

Elm And Carlton St
Buffalo, NY 14263-0001
Phone: (716) 845-2300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence 70935 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 57.027828 (OH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1083020440
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 7, 2014
Last updated in NPPESJuly 23, 2024
Certification dateJuly 23, 2024

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Roswell Park Cancer Institute — 489 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 patients39
Services billed 105 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 $1,334 1 payment
Food and Beverage $985 15 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $394 2 payments · travel or lodging paid or reimbursed, such as to attend a conference
Education $79 1 payment · educational material or training, 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.

Affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Roswell Park Cancer Institute

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 489 clinicians in the practice; 12 are shown here.

Other providers in Buffalo