NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Russell Johnson, MD

Diagnostic Radiology Physician in Tupelo, MS · enumerated 2009.

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

National Provider Identifier

1245469576

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William Russell Johnson
Credential MD
Sex Male
Practice address 620 Crossover Rd, Tupelo, MS, 38801
Enumeration date Jul 8, 2009
Last updated in NPPES Sep 27, 2023

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 21261 (MS) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for William Johnson?
The National Provider Identifier (NPI) for William Johnson is 1245469576, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Johnson practice?
The practice location on file with NPPES is in Tupelo, MS. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-27.