Quick answers
- Which hospitals does Cassidy M. Dahn work at?
- Medicare's official clinician data lists Cassidy M. Dahn at 1 hospital: NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cassidy M. Dahn see patients?
- Medicare's clinician data lists 1 practice location in New York, NY. Call before your visit to confirm the address.
- What is Cassidy M. Dahn's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty.
- Does Cassidy M. Dahn accept Medicare assignment?
- Yes. Medicare's clinician data says Cassidy M. Dahn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Cassidy M. Dahn?
- (212) 263-9701, as listed in official Medicare / NPI Registry data.
- What is Cassidy M. Dahn's NPI number?
- 1376809657. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cassidy M. Dahn works
Medicare's Facility Affiliation Data lists Cassidy M. Dahn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where Cassidy M. Dahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Broadway, Fl 2New York, NY 10006 (212) 263‑9701
Group practices
Medicare enrollment lists Cassidy M. Dahn as a member of this group (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
Specialties
- Critical Care (Intensivists)primary
Find other Critical Care (Intensivists) doctors in New York →
Other critical care doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Connecticut School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376809657 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians