Quick answers
- Does William L. Schreffler accept Medicare assignment?
- Yes. Medicare's clinician data says William L. Schreffler 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 L. Schreffler see?
- In 2024, CMS data shows 328 Original Medicare patients and 19,254 services for William L. Schreffler. This counts Original Medicare only and measures volume, not quality.
- What is William L. Schreffler's NPI number?
- 1568915783. 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 L. Schreffler, 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 | 328 |
|---|---|
| Services billed to Medicare | 19,254 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)10,082 services
- Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (J7318)7,581 services
- Aspiration and/or injection of fluid from large joint (20610)337 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)132 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)90 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%
- Arthritis75%
- Anxiety29%
- Chronic kidney disease23%
- Diabetes22%
Hospitals where William L. Schreffler works
Medicare's Facility Affiliation Data lists William L. Schreffler 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.
- Coastal Carolina HospitalHardeeville, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420101
- Novant Health Hilton Head Medical CenterHilton Head Island, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420080
Practice locations
Addresses where William L. Schreffler is enrolled with Medicare (CMS data updated October 2, 2026).
- 75 Baylor Dr, Suite 155Bluffton, SC 29910 (843) 682‑7480
- 95 Sea Island Pkwy, Suite 102Beaufort, SC 29907 (843) 682‑2800
Group practices
Medicare enrollment lists William L. Schreffler as a member of this group (CMS data updated October 2, 2026).
- Hilton Head Regional Physician Group LLC113 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Bluffton
Clinicians with the same Medicare primary specialty in Bluffton, SC — not a recommendation.
Other clinicians in Hilton Head Regional Physician Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2016 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568915783 |
| 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