Quick answers
- Does Nicholas R. Riordan accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas R. Riordan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Nicholas R. Riordan's NPI number?
- 1245121938. 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 Nicholas R. Riordan is enrolled with Medicare (CMS data updated October 2, 2026).
- 118 Richardson XingArnold, MO 63010 (636) 206‑4146
- 2706 28th StBoulder, CO 80301 (303) 233‑1223
- 4131 Union RdSaint Louis, MO 63129 (314) 274‑9222
Group practices
Medicare enrollment lists Nicholas R. Riordan as a member of these groups (CMS data updated October 2, 2026).
- Panorama Orthopedics and Spine Center PC308 clinicians in the group
- Axes Physical Therapy LLC116 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Missouri →
Other physical therapists in Arnold
Clinicians with the same Medicare primary specialty in Arnold, MO — not a recommendation.
Other clinicians in Panorama Orthopedics and Spine Center PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245121938 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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