Physician Profile
Christiaan A. Rees, MD, PhD
Unclaimed ProfileAbout Dr. Rees
Christiaan A. Rees, MD, PhD is a healthcare provider in Aurora, CO specializing in critical care medicine. Christiaan trained at Geisel School of Medicine at Dartmouth, graduating in 2020. Christiaan is also listed as specializing in pulmonary disease, internal medicine, and student in an organized health care education program. Medicare claims data shows Christiaan provided 32 services to 31 patients. The services billed most often include critical care, first 30-74 minutes and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (603) 276-8704
- Email not available
Practice Locations
13001 E 17TH PL
Aurora, CO 80045
1700 Wheeling St
Aurora, CO 80045
777 Bannock St
Denver, CO 80204
1400 Jackson St
Denver, CO 80206
1375 E 19th Ave
Denver, CO 80218
11600 W 2nd Pl
Lakewood, CO 80228
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
- Hemorrhagic stroke
- Ruptured Brain Aneurysm
- Spinal Cord Injury
- Sudden Muscle Weakness Crisis
Brain & Nervous System
- Brain Swelling
- Fainting and syncope
- ICU Delirium and Confusion
- Ischemic stroke
- Status epilepticus
- Traumatic brain injury
Breathing & Lungs
- Collapsed lung
- Respiratory failure
- Severe asthma attack
- Severe Blood Clot in Lung
- Severe Pneumonia
Digestive emergencies
Environmental emergencies
Heart & Circulation
Heart & vascular
Infection & Sepsis
Infections
Injury & trauma
Lung & breathing
- Critical COVID Complications
- Fluid in the Lungs
Medication reactions
Metabolic Emergencies
- Dangerous high blood sugar
- High Acid in Blood
Muscle & kidney
Organ Failure
- Acute kidney injury
- Multiple Organ Failure
- Severe Pancreatitis
- Sudden Liver Failure
Pregnancy emergencies
Recovery
- Post-ICU Weakness
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
- Family ICU Consultation and Goals of Care
- Post-ICU Recovery Care
Digestive procedures
Emergency surgery
- Emergency Chest Opening for Trauma
Fluid Drainage
Heart procedures
Heart support
ICU recovery
- Bedsore and Wound Dressing
- Early ICU Physical Rehab
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
- Emergency Clot-Busting Medication
Medications & Infusions
- Emergency Blood Transfusion
- ICU Sedation and Pain Relief
- IV Blood Pressure Support (Pressors)
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
32 services · 31 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
18 | Less often than most peers in Critical Care Medicine |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
14 | Less often than most 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 Aurora 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Geisel School of Medicine at Dartmouth 8
Other providers in the same specialty who trained at the same institution.
Class of 2020 at Geisel School of Medicine at Dartmouth 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Rees specialize in?
Dr. Rees is a critical care physician in Aurora, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Critical Care Medicine”.
NPI registry
Where is Dr. Rees located?
Dr. Rees is listed at 13001 E 17Th Pl, Aurora, CO 80045. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Rees's phone number?
The number on file is (603) 276-8704. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Rees?
Dr. Rees's National Provider Identifier is 1831726405. 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
Where did Dr. Rees go to medical school?
Dr. Rees attended Geisel School of Medicine at Dartmouth, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Rees have?
Dr. Rees has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Rees do most often?
According to Medicare billing data, Dr. Rees 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. Rees's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Rees. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.