NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

James F. Mcnab MD LLC

Radiation Oncology Physician in Port Royal, SC · enumerated 2009 · authorized official James Mcnab, MD/Owner.

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

National Provider Identifier

1821232471

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name James F. Mcnab MD LLC
Practice address 1680 Ribaut Rd, Ste A, Port Royal, SC, 29935
Phone (843) 522-7800
Fax (843) 524-0378
Enumeration date Apr 27, 2009
Last updated in NPPES Sep 17, 2009

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD29369 (SC) Primary

Authorized official

Name James Mcnab
Title MD/Owner
Phone (843) 522-7800

Other identifiers

Identifier Type State Issuer
293694 Medicaid SC -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for James F. Mcnab MD LLC?
NPPES lists James Mcnab (MD/Owner) as the authorized official for this organization.
What is the NPI number for James F. Mcnab MD LLC?
The NPI for James F. Mcnab MD LLC is 1821232471, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-17.