Quick answers
- Does William I. Petty Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William I. Petty Jr. 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 I. Petty Jr. see?
- In 2024, CMS data shows 412 Original Medicare patients and 2,672 services for William I. Petty Jr.. This counts Original Medicare only and measures volume, not quality.
- What is William I. Petty Jr.'s NPI number?
- 1871687665. 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 I. Petty Jr., 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 | 412 |
|---|---|
| Services billed to Medicare | 2,672 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)533 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)332 services
- Advance care planning, first 30 minutes (99497)287 services
- Ultrasound of both sides of head and neck blood flow (93880)224 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)145 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 pressure67%
- Arthritis52%
- Anxiety24%
- Ischemic heart disease23%
- Atrial fibrillation21%
Hospitals where William I. Petty Jr. works
Medicare's Facility Affiliation Data lists William I. Petty Jr. 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.
- Beaufort County Memorial HospitalBeaufort, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420067
- Candler HospitalSavannah, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110024
- 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 I. Petty Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 3901 Main St, Suite AHilton Head Island, SC 29926 (843) 689‑2150
- 3901 Main St AHilton Head Island, SC 29926
- 876 Fording Island Rd, Suite 2Bluffton, SC 29910 (843) 507‑8473
Group practices
Medicare enrollment lists William I. Petty Jr. as a member of this group (CMS data updated October 2, 2026).
- Cora South Carolina LLC236 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Hilton Head Island
Clinicians with the same Medicare primary specialty in Hilton Head Island, SC — not a recommendation.
Other clinicians in Cora South Carolina LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871687665 |
| 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