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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM HORN III
NPI 1871965608
Counselor - Professional in Rock Hill, SC

Active since October 20, 2015PECOS Enrolled
771 W RAMBO RD, ROCK HILL, SC 29730(334) 444-9496 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About William Horn Iii NPPES

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

WILLIAM HORN III (NPI 1871965608) is an individual professional provider in Rock Hill, South Carolina, licensed in South Carolina (7107) and active in the NPI registry since October 2015. He is enrolled in Medicare PECOS and maintains a secondary practice location in Clinton.

NPPES Registry Identity

NPI1871965608
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameWILLIAM HORN III
Location Address771 W RAMBO RDRock Hill, SC 29730-7287
Mailing Address771 Rambo Rd WRock Hill, SC 29730-7287
Phone(334) 444-9496
Sole ProprietorNo
Enumeration DateOctober 20, 2015
Last NPPES UpdateJuly 29, 2026
NPPES CertifiedJuly 29, 2026
✔ NPI 1871965608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in SC · 7107
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License 7107 (SC)
771 W RAMBO RD, Rock Hill, SC 29730
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Secondary Practice Location 1

Location 1939 Springdale DrClinton, SC 29325-7266 · Phone (910) 742-9243 · Fax (888) 746-1787

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, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Horn Iii is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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 Horn's NPI number?

The NPI number for William Horn is 1871965608. It was assigned to this individual provider in the NPPES registry on October 20, 2015.

Where is William Horn located?

William Horn practices at 771 W Rambo Rd, Rock Hill, SC 29730. The listed phone number is (334) 444-9496.

What is William Horn's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is William Horn enrolled in Medicare?

Yes. William Horn is registered in the Medicare PECOS enrollment system.

What insurance does William Horn accept?

Health plans from BlueCross BlueShield of South Carolina list William Horn 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 Horn was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 days 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.