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

Dr. William James Popovic, MD

Individual provider Internal Medicine Physician · NPI 1609824549

Dr. William James Popovic, MD is an Internal Medicine Physician in Shiloh, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
Specialties on file
2
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

1418 Cross St Div Im Medical Oncology Ste 180
Shiloh, IL 62269-2914
Phone: (618) 607-1340
Fax: (618) 622-9724
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 036060456 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036060456 (IL)

Record details

NPI number1609824549
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESApril 21, 2025
Mailing addressPo Box 7412011, Chicago, IL 60674-2011

Other providers in Shiloh