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

Leszek J Ballarin MD, SC

Organization Internal Medicine Physician · NPI 1770884256

Leszek J Ballarin MD, SC is an Internal Medicine Physician in Chicago, Illinois. Registered with an NPI since 2010.

In the registry since
2010

Practice location Address checks out

7045 W Belmont Ave
Chicago, IL 60634-4539
Phone: (773) 745-7377
Fax: (773) 745-7397
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1770884256
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Leszek Ballarin — Physician · (773) 745-7377
NPI enumeratedNovember 15, 2010
Last updated in NPPESNovember 15, 2010
Mailing address7045 W Belmont Ave, Chicago, IL 60634-4539

Other providers in Chicago