Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maryann Johnson, N.P.

Adult Health Nurse Practitioner in Manassas, VA · enumerated 2006.

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

National Provider Identifier

1376560193

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Registry record

Entity type Individual (Type 1)

Name Maryann Johnson

Credential N.P.

Sex Female

Practice address 10696 B Crestwood Drive, Dr. Grace J. Stonerock, Manassas, VA, 20109

Phone (703) 368-7110

Fax (703) 369-1842

Enumeration date Jul 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024085871 (VA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 NPI 1376560193 active?

Yes, as of the latest NPPES snapshot, NPI 1376560193 is active (record last updated 2007-07-08).

How do I verify Maryann Johnson's NPI record?

Cross-check NPI 1376560193 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.