1. Home
  2. Directory
  3. South Carolina
  4. Hilton Head Island
  5. Internal Medicine
  6. NPI Profile

WILLIAM I. PETTY II, M.D., LLC
NPI 1164849543
Internal Medicine in Hilton Head Island, SC

Active since March 24, 2014
460 WILLIAM HILTON PKWY, HILTON HEAD ISLAND, SC 29926(843) 338-6578 Get Directions Write a Review

NPPES record last updated: March 24, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About William I. Petty Ii, M.d., Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM I. PETTY II, M.D., LLC (NPI 1164849543) is a healthcare organization registered as an internal medicine in Hilton Head Island, South Carolina and active in the NPI registry since March 2014. The organization lists William I Petty, Physician, as its authorized official.

NPPES Registry Identity

NPI1164849543
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWILLIAM I. PETTY II, M.D., LLC
Location Address460 WILLIAM HILTON PKWYHilton Head Island, SC 29926-2497
Mailing AddressPo Box 24036Hilton Head Island, SC 29925-4036 · (843) 338-6578
Phone(843) 338-6578
Organization SubpartNo
Authorized OfficialWilliam I PettyPhysician · (843) 338-6578
Enumeration DateMarch 24, 2014
✔ NPI 1164849543 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SC · 19763
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
460 WILLIAM HILTON PKWY, Hilton Head Island, SC 29926
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of South Carolina.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William I. Petty Ii, M.d., Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to William I. Petty II, M.D., LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

William Petty, M.D.
Internal Medicine
NPI 1871687665
3901 MAIN ST STE A
Hilton Head Island, SC 29926
(843) 689-2150
✔ PECOS✔ Accepts Medicare2.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William I. Petty II, M.D., LLC's NPI number?

The NPI number for William I. Petty II, M.D., LLC is 1164849543. It was assigned to this organization in the NPPES registry on March 24, 2014.

Where is William I. Petty II, M.D., LLC located?

William I. Petty II, M.D., LLC is located at 460 William Hilton Pkwy, Hilton Head Island, SC 29926. The listed phone number is (843) 338-6578.

What is William I. Petty II, M.D., LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William I. Petty II, M.D., LLC enrolled in Medicare?

Yes. William I. Petty II, M.D., LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through William I. Petty II, M.D., LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to William I. Petty II, M.D., LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does William I. Petty II, M.D., LLC accept?

Health plans from BlueCross BlueShield of South Carolina list William I. Petty II, M.D., LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William I. Petty II, M.D., LLC was last updated on March 24, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.