Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Cassidy M Dahn, MD

Individual provider Emergency Medicine Physician · NPI 1376809657

Cassidy M Dahn, MD is a Critical Care (Intensivists) in New York, New York. Graduated from University of Connecticut School of Medicine in 2012, 14 years ago. Practices with New York University, a 5,884-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
14
Trained at
University of Connecticut School of Medicine
Licensed in
NY
In the registry since
2012
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

550 1st Ave
New York, NY 10016-6402
Phone: (212) 263-3293
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 111 E 210th St, Bronx, NY 10467-2401 — (718) 920-4321
  • 111 E 210th St, Bronx, NY 10467-2401 — (718) 920-4321

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 288091 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 288091 (NY)

Record details

NPI number1376809657
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2012
Last updated in NPPESMay 19, 2025
Certification dateMay 19, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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