Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. William Michael McLaughlin, MD

Individual provider Orthopaedic Surgery Physician · NPI 1942865647

Dr. William Michael McLaughlin, MD practises Orthopedic Surgery in Saint Peters, Missouri. Qualified in 2019, 7 years ago. Practices with Mercy Clinic Surgical Specialists LLC, a 180-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
7
Licensed in
MO
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5200 Executive Centre Pkwy
Saint Peters, MO 63376-3798
Phone: (636) 441-3444
Fax: (636) 441-9832
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4921 Parkview Pl, Saint Louis, MO 63110-1032 — (314) 514-3500

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 2024024137 (MO)
Sports Medicine (Orthopaedic Surgery) Physician Taxonomy 207XX0005X · Licence 2024024137 (MO)

Record details

NPI number1942865647
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 8, 2019
Last updated in NPPESMay 20, 2026
Certification dateMay 20, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Mercy Clinic Surgical Specialists Llc — 180 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hip replacement 1–10 times
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times
Upper limb (arm) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $9,710 25 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,847 43 payments · a meal or drink at a meeting or visit, not a fee
Grant $2,500 1 payment · funding for a project or programme, not a fee for the clinician’s time
Education $169 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Mercy Clinic Surgical Specialists LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 180 clinicians in the practice; 12 are shown here.

Other providers in Saint Peters