Quick answers
- Does William S. Horsley accept Medicare assignment?
- Yes. Medicare's clinician data says William S. Horsley accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does William S. Horsley see?
- In 2024, CMS data shows 121 Original Medicare patients and 223 services for William S. Horsley. This counts Original Medicare only and measures volume, not quality.
- What is William S. Horsley's NPI number?
- 1841341369. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for William S. Horsley, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 121 |
|---|---|
| Services billed to Medicare | 223 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)49 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)31 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)20 services
- Removal of blood clot and portion of chest, neck, or brain artery (35301)12 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease68%
- Arthritis63%
- Diabetes47%
- Heart failure45%
Hospitals where William S. Horsley works
Medicare's Facility Affiliation Data lists William S. Horsley at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baptist Health Medical Center - JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100088
- HCA Florida Memorial HospitalJacksonville, FL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 100179
- HCA Florida Orange Park HospitalOrange Park, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100226
- Princeton Baptist Medical CenterBirmingham, AL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 010103
Practice locations
Addresses where William S. Horsley is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1130 22nd St S, Suite 1000Birmingham, AL 35205
- 1824 King St, Suite 200Jacksonville, FL 32204 (904) 384‑3343
- 2010 Brookwood Med Ctr DrBirmingham, AL 35209 (205) 877‑2872
- 420 E Division StFond Du Lac, WI 54935 (920) 923‑7400
- 5295 Preserve Pkwy, Suite 260Hoover, AL 35244 (205) 380‑9761
Group practices
Medicare enrollment lists William S. Horsley as a member of these groups (CMS data updated October 2, 2026).
- Lee Health System Inc1,428 clinicians in the group
- Agnesian Healthcare Inc388 clinicians in the group
- Baptist Health Centers LLC198 clinicians in the group
- Cardiothoracic and Vascular Surgical Associates PA85 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Birmingham
Clinicians with the same Medicare primary specialty in Birmingham, AL — not a recommendation.
Other clinicians in Lee Health System Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Alabama School Of Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841341369 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians