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

Jens Hillengass, MD

Individual provider Hematology (Internal Medicine) Physician · NPI 1447748058

Jens Hillengass, MD is a Medical Oncology in Buffalo, New York. Qualified in 2002, 24 years ago. Practices with Roswell Park Cancer Institute, a 489-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
24
Licensed in
NY
In the registry since
2018
Specialties on file
2
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
Fax: (716) 845-2293
Show map & directions

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

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 293671 (NY)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 293671 (NY)

Record details

NPI number1447748058
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2018
Last updated in NPPESAugust 12, 2019

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Roswell Park Cancer Institute — 489 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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