Quick answers
- Does Clayton R. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Clayton R. Williams 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 Clayton R. Williams see?
- In 2024, CMS data shows 178 Original Medicare patients and 729 services for Clayton R. Williams. This counts Original Medicare only and measures volume, not quality.
- What is Clayton R. Williams's NPI number?
- 1780657387. 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 Clayton R. Williams, 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 | 178 |
|---|---|
| Services billed to Medicare | 729 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)303 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)184 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)72 services
- Injection of drug or substance under skin or into muscle (96372)34 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)23 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 cholesterol75%
- High blood pressure74%
- Arthritis45%
- Anxiety40%
- COPD27%
- Ischemic heart disease26%
Hospitals where Clayton R. Williams works
Medicare's Facility Affiliation Data lists Clayton R. Williams 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.
- Cleveland Clinic Indian River HospitalVero Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100105
- Orlando Health Sebastian River HospitalSebastian, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100217
Practice locations
Addresses where Clayton R. Williams is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 Lexington Green LnSanford, FL 32771
- 3434 Hancock Bridge Pkwy, Suite 301North Fort Myers, FL 33903 (877) 856‑3774
- 3745 11th Cir, Suite 105Vero Beach, FL 32960 (772) 564‑2485
Group practices
Medicare enrollment lists Clayton R. Williams as a member of these groups (CMS data updated October 2, 2026).
- Ability Health Services and Rehabilitation LP1,269 clinicians in the group
- Ability Health Services, Inc1,258 clinicians in the group
- Millennium Physician Group LLC982 clinicians in the group
- RHG of Florida PA24 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Sanford
Clinicians with the same Medicare primary specialty in Sanford, FL — not a recommendation.
Other clinicians in Ability Health Services and Rehabilitation LP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1780657387 |
| 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