Individual provider Active NPI

William Michael McLaughlin, MD

  • Orthopaedic Surgery Physician
  • Saint Peters, MO
National Provider Identifier
1942865647
Registry record updated May 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
2024024137 Issued in MO
Practice address
5200 Executive Centre Pkwy
Saint Peters, MO 63376-3798
Phone
(636) 441-3444
Fax
(636) 441-9832
NPI assigned
May 8, 2019
Last updated
May 20, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 20, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 2024024137 MO Primary
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X 2024024137 MO

Addresses

Primary practice location

5200 Executive Centre Pkwy
Saint Peters, MO 63376-3798

Mailing address

5200 Executive Centre Pkwy
Saint Peters, MO 63376-3798
Phone (636) 441-3444

Other practice location 1

4921 Parkview Pl
Dept Orthopaedic Surgery, Ste 6A/6B/12A
Saint Louis, MO 63110-1032
Phone (314) 514-3500

Other identifiers 1

IdentifierTypeStateIssuer
200146498MedicaidMO

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250327003682 MO Practitioner - Orthopedic Surgery 6305170168 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Clinic Surgical Specialists LLCGroup PAC ID 1153455076, 180 clinicians

Practice addresses (Care Compare)

1165 A E Cherry St
Mercy Clinic East
Troy, MO 63379-1520
Phone (636) 528-3407

1173 E Cherry St
Mercy Clinic Vascular Specialists
Troy, MO 63379-1520
Phone (636) 528-3276

1175 E Cherry St
Troy, MO 63379-1520
Phone (636) 528-8686

5200 Executive Centre Pkwy
300 St. Peters Bone and Joint Surgery
Saint Peters, MO 63376-3394
Phone (636) 441-3444

851 E 5TH St
Suite 108
Washington, MO 63090-3128
Phone (636) 861-7870

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement1-10
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
2024024137MOMDSports Medicine (Orthopaedic Surgery) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Clinic Surgical Specialists, LLC CurrentSince Dec 14, 2025 Accepting new patients
St Peters Bone & Joint Surgery Inc. Orthopaedic Surgery CurrentSince Mar 1, 2025 Accepting new patients
St Peters Bone & Joint Surgery Inc. Orthopaedic Surgery CurrentSince Mar 1, 2025 Accepting new patients

Locations

4701 Highway K
O Fallon, MO 63368
Phone (636) 441-3444

621 S New Ballas Rd
Ste 3005B
Saint Louis, MO 63141
Phone (314) 251-7070

5200 Executive Centre Pkwy
Ste 300
Saint Peters, MO 63376
Phone (636) 229-4222

851 E 5th St
Ste 108
Washington, MO 63090
Phone (636) 239-4144

378 Shadow Pines Dr
Wentzville, MO 63385
Phone (636) 441-3444

Interoperability endpoints

  • FHIR API: https://fhir-api.fhirprod.aws.greenwayhealth.com/fhir/R4/2.16.840.1.113883.3.140.73033

Organizations & group practices 3

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

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1557273600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779235200000",
    "number": "1942865647",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5200 EXECUTIVE CENTRE PKWY",
            "city": "SAINT PETERS",
            "state": "MO",
            "postal_code": "633763798",
            "telephone_number": "636-441-3444",
            "fax_number": "636-441-9832"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5200 EXECUTIVE CENTRE PKWY",
            "city": "SAINT PETERS",
            "state": "MO",
            "postal_code": "633763798",
            "telephone_number": "636-441-3444",
            "fax_number": "636-441-9832"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4921 Parkview Pl",
            "address_2": "Dept Orthopaedic Surgery, Ste 6A/6B/12A",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631101032",
            "country_code": "US",
            "telephone_number": "314-514-3500",
            "fax_number": "314-878-7678",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCLAUGHLIN",
        "first_name": "WILLIAM",
        "middle_name": "MICHAEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-08",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MO",
            "license": "2024024137",
            "primary": true
        },
        {
            "code": "207XX0005X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Sports Medicine",
            "state": "MO",
            "license": "2024024137",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200146498",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "4921 Parkview Pl",
            "address_2": "Dept Orthopaedic Surgery, Ste 6A/6B/12A",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101032",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Saint Peters, MO

Sources for this page

Verify at the official NPI Registry.