Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Shannon Green Johnston, NP-C

Nurse Practitioner in Low Moor, VA · enumerated 2018 · practices at Alleghany Medical Services, PC.

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

National Provider Identifier

1427544089

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Shannon Green Johnston

Credential NP-C

Sex Female

Practice address 1 Arh Lane, Suite 100, Low Moor, VA, 24457

Phone (540) 862-6777

Fax (540) 863-9167

Enumeration date Jul 6, 2018

Last updated in NPPES Jun 5, 2023

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024176323 (VA) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Shannon Johnston?

Shannon Johnston is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Alleghany Medical Services, PC Primary Care Clinic/Center · Low Moor, VA NPI 1083717375

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-05.