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Edit this profileWhere to find Michael J. Brennan, DO, MPH
- Chicago location main office
1620 W Harrison St, Chicago, IL 60612 - Taylor location
10000 Telegraph Rd, Taylor, MI 48180 - Oak Lawn location
4440 W 95th St, Oak Lawn, IL 60453 - Grosse Pointe location
468 Cadieux Rd, Grosse Pointe, MI 48230 - Wayne location
33155 Annapolis St, Wayne, MI 48184
About Dr. Brennan
Michael J. Brennan, DO, MPH is a healthcare provider in Chicago, IL specializing in critical care medicine. Michael trained at Lake Erie Col of Osteopathic Medicine, Bradenton, graduating in 2019. Michael is also listed as specializing in emergency medicine. Medicare claims data shows Michael provided 50 services to 48 patients. The services billed most often include emergency department visit with high level of medical decision making and emergency department visit with moderate level of medical decision making. This provider record is associated with NPI 1811550981.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (312) 942-5000
- Email not available
Practice Locations
1620 W HARRISON ST
Chicago, IL 60612
10000 Telegraph Rd
Taylor, MI 48180
4440 W 95th St
Oak Lawn, IL 60453
468 Cadieux Rd
Grosse Pointe, MI 48230
33155 Annapolis St
Wayne, MI 48184
Conditions Commonly Evaluated or Treated
Within Critical Care Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Blood & metabolism
Brain & nerve
Brain & Nervous System
- Brain Swelling
- Fainting and syncope
- ICU Delirium and Confusion
- Ischemic stroke
- Status epilepticus
- Traumatic brain injury
Breathing & Lungs
Digestive emergencies
Environmental emergencies
Heart & Circulation
Heart & vascular
Infection & Sepsis
Infections
Injury & trauma
Lung & breathing
Medication reactions
Metabolic Emergencies
Muscle & kidney
Organ Failure
Pregnancy emergencies
Recovery
Substance emergencies
Toxicity & Trauma
Procedures & services
Airway & Breathing
- Airway Scope and Suctioning
- Breathing machine management
- Chest tube insertion
- Emergency intubation
- Tracheostomy
Airway procedures
Brain procedures
Breathing support
Consultation & Recovery
Digestive procedures
Emergency surgery
Fluid Drainage
Heart procedures
Heart support
ICU recovery
Lab tests & monitoring
Life Support
- Cardioversion for rapid heartbeat
- CPR and defibrillation
- ECMO (Heart-Lung Machine)
- Stomach Positioning for Lung Failure
- Targeted Body Cooling
- Temporary Pacemaker Placement
- Ventilator Support
Medication therapies
Medications & Infusions
Monitoring
- Bladder and Belly Pressure Check
- Brain Blood Flow Ultrasound
- Brain Pressure Monitor Placement
- Continuous Brain Wave Monitoring
- Emergency ultrasound
- Heart Pressure Catheter Monitoring
- Lumbar puncture
Nutrition & Digestion
Nutrition support
Organ Support
Vascular Access
Procedures Most Often Billed to Medicare
50 services · 48 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
27 | Less often than most peers in Critical Care Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
23 | As often as other peers in Critical Care Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other critical care physicians in Chicago 8
Same specialty, same city.
More connections — 9 related providers in 2 groups
Trained at Lake Erie Col of Osteopathic Medicine, Bradenton 1
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Lake Erie Col of Osteopathic Medicine, Bradenton 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Brennan's specialty?
Dr. Brennan is a critical care physician in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Critical Care Medicine”.
NPI registry
Where can I find Dr. Brennan?
Dr. Brennan is listed at 1620 W Harrison St, Chicago, IL 60612. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Brennan?
The number on file is (312) 942-5000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Brennan?
Dr. Brennan's National Provider Identifier is 1811550981. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Brennan's medical education?
Dr. Brennan attended Lake Erie Col of Osteopathic Medicine, Bradenton, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Brennan have?
Dr. Brennan has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Brennan known for?
According to Medicare billing data, Dr. Brennan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Brennan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Brennan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.