Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Russell G Johnston, M.D.
Specialist in Manassas, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790845493
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Registry record
Entity type Individual (Type 1)
Name Dr. Russell G Johnston
Credential M.D.
Sex Male
Practice address Prince William Hospital, 8700 Sudley Road, Manassas, VA, 20011
Phone (703) 379-8000
Enumeration date Dec 11, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 5707200 | Medicaid | VA | - |
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.
Frequently asked questions
Is NPI 1790845493 active?
Yes, as of the latest NPPES snapshot, NPI 1790845493 is active (record last updated 2007-07-08).
How do I verify Russell Johnston's NPI record?
Cross-check NPI 1790845493 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.