Physician Profile
Connor G. O'Brien, M.D.
Unclaimed ProfileAbout Dr. O'brien
Connor G. O'Brien, M.D. is a healthcare provider in San Francisco, CA specializing in critical care medicine. Connor is also listed as specializing in internal medicine and cardiovascular disease. Medicare claims data shows Connor provided 631 services to 257 patients. The services billed most often include critical care, first 30-74 minutes, critical care, each additional 30 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 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
Source: NPPES NPI Registry
Contact Information
- (415) 353-2873
- Email not available
Practice Locations
535 MISSION BAY BLVD S
San Francisco, CA 94143
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
631 services · 257 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
18 |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
18 |
| Insertion of tube in pulmonary artery for monitoring | Treatment | 93503 |
14 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
391 |
| Critical care, each additional 30 minutes | Office visit | 99292 |
160 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
30 |
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.
Other critical care physicians at this location 1
Same specialty, same street address — most likely the same department or group.
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 San Francisco 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Connor G. O'Brien specialize in?
Connor G. O'Brien is a critical care physician in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Critical Care Medicine”.
NPI registry
Where is Connor G. O'Brien located?
Connor G. O'Brien is listed at 535 Mission Bay Blvd S, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Connor G. O'Brien's phone number?
The number on file is (415) 353-2873. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Connor G. O'Brien?
Connor G. O'Brien's National Provider Identifier is 1063788727. 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 Connor G. O'Brien train?
Connor G. O'Brien attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Connor G. O'Brien have?
Connor G. O'Brien has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Connor G. O'Brien do most often?
According to Medicare billing data, Connor G. O'Brien performs procedures including insertion of artery tube for blood sampling or infusion through skin and insertion of non-tunneled central venous tube for infusion; provides treatments such as insertion of tube in pulmonary artery for monitoring, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Connor G. O'Brien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Connor G. O'Brien. 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.