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

Sijun Yang, MD

Individual provider Internal Medicine Physician · NPI 1962653568

Sijun Yang, MD is an Internal Medicine in Bolingbrook, Illinois. Qualified in 1989, 37 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
37
Licensed in
IL
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

454 W Boughton Rd Ste C
Bolingbrook, IL 60440-1378
Phone: (630) 778-8571
Fax: (630) 778-8572
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036-122231 (IL)

Record details

NPI number1962653568
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 2, 2008
Last updated in NPPESDecember 20, 2021
Certification dateJanuary 11, 2021
Mailing address454 W Boughton Rd Ste C, Bolingbrook, IL 60440-1378

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Bolingbrook