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Edit this profileWhere to find Cassidy M. Dahn, MD
- New York location main office
550 1St Ave, New York, NY 10016 - Bronx location
111 E 210th St, Bronx, NY 10467
About Dr. Dahn
Cassidy M. Dahn, MD is a healthcare provider in New York, NY specializing in critical care (intensivists). Cassidy trained at University of Connecticut School of Medicine, graduating in 2012. Cassidy is also listed as specializing in emergency medicine and critical care medicine. Medicare claims data shows Cassidy provided 267 services to 184 patients. The services billed most often include critical care, first 30-74 minutes, 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 1376809657.
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
- (212) 263-3293
- Email not available
Practice Locations
550 1ST AVE
New York, NY 10016
111 E 210th St
Bronx, NY 10467
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
267 services · 184 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
139 | As often as other peers in Critical Care (Intensivists) |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
48 | As often as other peers in Critical Care (Intensivists) |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
41 | More often than most peers in Critical Care (Intensivists) |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
22 | Less often than most peers in Critical Care (Intensivists) |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
17 | Less often than most peers in Critical Care (Intensivists) |
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 cares 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 cares in New York 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at University of Connecticut School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at University of Connecticut School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Dahn specialize in?
Dr. Dahn is a critical care (intensivists) in New York, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Dahn located?
Dr. Dahn is listed at 550 1St Ave, New York, NY 10016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Dahn's phone number?
The number on file is (212) 263-3293. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Dahn?
Dr. Dahn's National Provider Identifier is 1376809657. 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. Dahn go to medical school?
Dr. Dahn attended University of Connecticut School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Dahn have?
Dr. Dahn has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Dahn do most often?
According to Medicare billing data, Dr. Dahn 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. Dahn's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dahn. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.