Quick answers
- Where does Ryan T. Cassilly see patients?
- Medicare's clinician data lists 1 practice location in Fair Lawn, NJ. Call before your visit to confirm the address.
- What is Ryan T. Cassilly's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Ryan T. Cassilly accept Medicare assignment?
- Medicare's clinician data says Ryan T. Cassilly may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Ryan T. Cassilly?
- (201) 791-4434, as listed in official Medicare / NPI Registry data.
- What is Ryan T. Cassilly's NPI number?
- 1235455924. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Ryan T. Cassilly is enrolled with Medicare (CMS data updated 2026-10-02).
- 28 -04 BroadwayFair Lawn, NJ 07410 (201) 791‑4434
Group practices
Medicare enrollment lists Ryan T. Cassilly as a member of this group (CMS data updated 2026-10-02).
- Garden State Orthopaedic Associates, PA16 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Fair Lawn
Clinicians with the same Medicare primary specialty in Fair Lawn, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1235455924 |
| 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
- 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