Individual provider · Type 1 NPI

Michael James Brennan, DO, MPH

Critical Care Medicine (Internal Medicine) Physician · Chicago, IL

NPI number 1811550981 Active

Practice location

1620 W Harrison St
Chicago, IL 60612-3801

Call (312) 942-5000 Map

Mailing address

29373 Network Pl
Chicago, IL 60673-1293

Other practice locations

  • 10000 Telegraph Rd, Taylor, MI 48180-3330 · (313) 295-5000
  • 4440 W 95th St, Oak Lawn, IL 60453-2600 · (708) 283-5500
  • 468 Cadieux Rd, Grosse Pointe, MI 48230-1507 · (313) 473-1000
  • 33155 Annapolis St, Wayne, MI 48184-2405 · (734) 467-4000

Specialties and licenses

TaxonomyCodeLicense
Emergency Medicine Physician 207P00000X5101025918 (MI)
Emergency Medicine Physician 207P00000X036.164300 (IL)
Emergency Medicine Physician 207P00000X5151013942 (MI)
Critical Care Medicine (Internal Medicine) Physician Primary 207RC0200X036.164300 (IL)

Critical Care Medicine (Internal Medicine) Physician: An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

559 other providers at this address

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About NPI 1811550981

Michael James Brennan, DO, MPH's National Provider Identifier is 1811550981, issued on Apr 15, 2019. The primary taxonomy on file is Critical Care Medicine (Internal Medicine) Physician (207RC0200X), and the practice location is in Chicago, IL. The record was last updated on Sep 24, 2025.