Quick answers
- Does Courtney C. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Courtney C. 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 Courtney C. Williams see?
- In 2024, CMS data shows 119 Original Medicare patients and 119 services for Courtney C. Williams. This counts Original Medicare only and measures volume, not quality.
- What is Courtney C. Williams's NPI number?
- 1578201984. 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 Courtney C. 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 | 119 |
|---|---|
| Services billed to Medicare | 119 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for removal of prostate including use of an endoscope (00914)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 cholesterol69%
- Arthritis57%
- Ischemic heart disease33%
- Atrial fibrillation29%
- Diabetes27%
Hospitals where Courtney C. Williams works
Medicare's Facility Affiliation Data lists Courtney C. 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.
- Rock Hill Hospital-Piedmont Medical CenterRock Hill, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420002
Practice locations
Addresses where Courtney C. Williams is enrolled with Medicare (CMS data updated October 2, 2026).
- 164 Glenwood DrRock Hill, SC 29732 (803) 325‑9010
- 222 Herlong Ave SRock Hill, SC 29732 (803) 985‑3089
Group practices
Medicare enrollment lists Courtney C. Williams as a member of these groups (CMS data updated October 2, 2026).
- Optimum Anesthesia64 clinicians in the group
- Anesthesia Associates of Rock Hill PA62 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), South Carolina →
Other nurse anesthetists in Rock Hill
Clinicians with the same Medicare primary specialty in Rock Hill, SC — not a recommendation.
Other clinicians in Optimum Anesthesia
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578201984 |
| 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