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

Dr. Brian Rees Haag, MD

Individual provider Emergency Medicine Physician · NPI 1790732949

Dr. Brian Rees Haag, MD is an Emergency Medicine Physician in Olympia Fields, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

20201 Crawford Ave
Olympia Fields, IL 60461-1010
Phone: (708) 747-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036-110403 (IL)

Record details

NPI number1790732949
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 30, 2006
Last updated in NPPESMay 27, 2009
Mailing address555 W Court St, Kankakee, IL 60901-3675

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