Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greylock Emergency Physicians LLC

Emergency Medicine Physician in Walterboro, SC · enumerated 2014 · authorized official Gregory Byrne, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1265841134

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Registry record

Entity type Organization (Type 2)

Legal business name Greylock Emergency Physicians LLC

Practice address 501 Robertson Blvd, Walterboro, SC, 29488

Phone (843) 782-2000

Enumeration date Aug 5, 2014

Last updated in NPPES Aug 11, 2014

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Gregory Byrne

Title President

Phone (469) 401-2386

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Greylock Emergency Physicians LLC located?

The practice location on file with NPPES is in Walterboro, SC.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-08-11. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-11.