Nicholas Roman Riordan, DPT

Primary specialty

Physical TherapistTaxonomy code 225100000X

License

2025028627 Issued in MO

Practice address

4131 Union Rd
Saint Louis, MO 63129-1064

Phone

(314) 274-9222

NPI assigned

Jul 11, 2025

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MO, CO2 enrollments

Enrollment records 2

Specialty

Physical Therapist in Private Practice

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Axes Physical Therapy LLCGroup PAC ID 3375840028, 112 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Axes Physical Therapy, LLC

  • Physical Therapy Clinic/Center
  • O Fallon, MO
  • NPI 1003280421

  Physical Therapist

  Medicare reassignment Care Compare group NPD
• Axes Physical Therapy I, LLC

  • Physical Therapy Clinic/Center
  • Washington, MO
  • NPI 1679032700

  Physical Therapist

  Medicare reassignment NPD
• Panorama Orthopedics and Spine Center PC

  • Orthopaedic Surgery Physician
  • Golden, CO
  • NPI 1295787950
  Medicare reassignment
• Axes Physical Therapy I, LLC

  • Prosthetic/Orthotic Supplier
  • Union, MO
  • NPI 1912594243
  NPD
• Axes Physical Therapy, LLC

  • Durable Medical Equipment & Medical Supplies
  • Creve Coeur, MO
  • NPI 1699530931

  Physical Therapist

  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1752192000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1245121938",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "647 SPIRIT AIRPARK WEST DR STE 101",
            "city": "CHESTERFIELD",
            "state": "MO",
            "postal_code": "630051032",
            "telephone_number": "636-223-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4131 UNION RD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631291064",
            "telephone_number": "314-274-9222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2706 28th St",
            "address_purpose": "LOCATION",
            "city": "Boulder",
            "state": "CO",
            "postal_code": "803011222",
            "country_code": "US",
            "telephone_number": "303-444-1290",
            "fax_number": "303-444-1837",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIORDAN",
        "first_name": "NICHOLAS",
        "middle_name": "ROMAN",
        "credential": "DPT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-07-11",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "MO",
            "license": "2025028627",
            "primary": true
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "CO",
            "license": "21275",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Haley Ringenary, PHD
• Monika Indgrid Ringer, COTA/L
• Brian Richard Ringhofer, M.D.
• Kara Ringkamp, PT, DPT
• Amy Ringwald-Burton, SSP, NCSP
• Diana Rios
• Lauren Schneider Rios, PHD
• Tavia Rios, MD
• Aaron Rippelmeyer, ANP-BC
• Michelle Rippelmeyer, MSN, RN, IBCLC

• Physical Therapist in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Physical Therapist in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.