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

Dr. Nathaniel Mark Ivanick, MD

Individual provider Pulmonary Disease Physician · NPI 1063623098

Dr. Nathaniel Mark Ivanick, MD is registered under Pulmonary Disease in Buffalo, New York. Qualified in 2007, 19 years ago. Practices with Roswell Park Cancer Institute, a 489-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and New York.

Years since qualifying
19
Licensed in
CA, NY
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Elm And Carlton Streets
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.

Additional practice locations (1)

  • 701 E El Camino Real, Mountain View, CA 94040-2833 — (650) 404-7144

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 298396 (NY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence C154270 (CA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 298396 (NY)

Record details

NPI number1063623098
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2007
Last updated in NPPESSeptember 21, 2021
Certification dateSeptember 21, 2021

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolOTHER
Graduated 2007 (19 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 patients86
Services billed 254 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Travel and Lodging $860 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $838 11 payments · 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.

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