Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Stewart Horsley, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1841341369

Dr. William Stewart Horsley, MD practises Thoracic Surgery in Columbus, Mississippi. Graduated from University of Alabama School of Medicine in 1989, 37 years ago. Practices with Baptist Health Centers LLC, a 181-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Florida and Mississippi.

Years since qualifying
37
Trained at
University of Alabama School of Medicine
Licensed in
FL, MS
In the registry since
2007
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

255 Baptist Blvd Ste 401
Columbus, MS 39705-2006
Phone: (662) 244-2288
Fax: (662) 244-2289
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 (5)

  • 1004 1st St N Ste 270, Alabaster, AL 35007-8798 — (205) 620-7523
  • 2018 Brookwood Medical Ctr Dr Ste 215, Birmingham, AL 35209-6870 — (205) 877-2627
  • 833 Princeton Ave Sw Ste 200f, Birmingham, AL 35211-1321 — (205) 785-3218
  • 5295 Preserve Pkwy Ste 260, Hoover, AL 35244-4703 — (205) 510-5000
  • 9981 S Healthpark Dr, Fort Myers, FL 33908-3618 — (239) 343-6341

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 15937 (MS)
Hospitalist Physician Taxonomy 208M00000X · Licence ME170618 (FL)

Record details

NPI number1841341369
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 12, 2007
Last updated in NPPESMay 18, 2026
Certification dateMay 18, 2026

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolUNIVERSITY OF ALABAMA SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Baptist Health Centers Llc — 181 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.

Coronary artery bypass graft (CABG) 16 times · 58th percentile
Leg revascularization (restoring blood flow) 1–10 times
Removal of tissue 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.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients121
Services billed 223 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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.

Food and Beverage $873 23 payments · a meal or drink at a meeting or visit, 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.

Colleagues at Baptist Health Centers LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 181 clinicians in the practice; 12 are shown here.

Other providers in Columbus