Nicholas Roman Riordan, DPT
Physical Therapist · Saint Louis, MO
Nicholas Roman Riordan, DPT is a physical therapist with a practice address in Saint Louis, Missouri, and NPI 1245121938, issued on Jul 11, 2025. Check the license (Missouri 2025028627, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicholas Roman Riordan
- Credential
- DPT
- Primary taxonomy
- Physical Therapist 225100000X
- License numbers
- 2025028627 MO
21275 CO
Self-reported in NPPES; status is on the state search - Practice location
- 4131 Union RD, Saint Louis, MO 63129
- Phone
- (314) 274-9222
- Enumerated
- Jul 11, 2025
- Record last updated
- Jun 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20250718003149); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2025
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 4,540 in Missouri → Look up another NPI →
Also registered at 4131 Union RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Carter, MSPT ATC CMPT CWCPhysical Therapist1770693855
- Alexandra Lanzafame, DPTPhysical Therapist1619896826
- Camri Pratt, DPTOccupational Therapist1134934300
- Jayne Scanlan, MS PTPhysical Therapist1164532289
- Darcy Sweet, OTR/LOccupational Therapist1548040322
Verify Nicholas Roman Riordan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2025028627Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Axes Physical Therapy LLCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Roman Riordan among 4,540 physical therapist records in Missouri
Nicholas Roman Riordan, DPT is one of 4,540 physical therapist records with a practice address in Missouri. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 92% of them.
- NPI issued2025 · 92% of these records are older, 3% newer
- In a Medicare fileYes · 26% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2025 · median 2017 among the 1,244 with a school on file
- Record last updated2026 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
787 physical therapist records list a practice address in Saint Louis
They are 787 of the 27,605 NPPES records with a practice address in Saint Louis, and 4,540 physical therapist records in Missouri.
All 4,540 in Missouri → Every provider in Saint Louis → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Dianna Antonacci, P.T., M.B.A.St Louis, MO 631291538380217
- Amanda Carter, MSPT ATC CMPT CWCSaint Louis, MO 631291770693855
- Margaret Carver, DPTSaint Louis, MO 631291316278559
- Lisa Clemence, P.T.Saint Louis, MO 631291659675395
- Deborah Goltschman, MPTSaint Louis, MO 631291972514164
- Melissa Handlan, PTSaint Louis, MO 631291366620270
- Patrick Huck, MHS, PTSaint Louis, MO 631291265586424
- Johnna Norton, P.T.Saint Louis, MO 631291285839290
Common questions
What is Nicholas Roman Riordan, DPT's NPI number?
Nicholas Roman Riordan, DPT's National Provider Identifier (NPI) is 1245121938, issued on Jul 11, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Roman Riordan, DPT located?
The NPPES record lists a practice address at 4131 Union RD, Saint Louis, MO, 63129. Phone: (314) 274-9222. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Roman Riordan, DPT's license?
NPPES lists Missouri license number 2025028627, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.