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

Claire Niewiara, MD

Individual provider Radiation Oncology Physician · NPI 1487458113

Claire Niewiara, MD is a Radiation Oncology Physician in Maywood, Illinois. Licensed in Illinois. Registered with an NPI since 2025.

Licensed in
IL
In the registry since
2025
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2160 S 1st Ave
Maywood, IL 60153-3328
Phone: (708) 216-2729
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

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 125085666 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.085666 (IL)

Record details

NPI number1487458113
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 2, 2025
Last updated in NPPESMay 20, 2026
Certification dateMay 20, 2026
Mailing address2160 S 1st Ave, Maywood, IL 60153-3328

Other providers in Maywood