Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Grant Johnson, D.O.
Urology Physician in Smyrna, TN · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851778609
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Registry record
Entity type Individual (Type 1)
Name Dr. Grant Johnson
Credential D.O.
Sex Male
Practice address 521 Stonecrest Pkwy Ste 202, Smyrna, TN, 37167
Phone (615) 459-3330
Fax (615) 459-2997
Enumeration date Apr 30, 2015
Last updated in NPPES Feb 24, 2026
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4082 | Other | TN | STATE LICENSE |
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
Where does Grant Johnson practice?
The practice location on file with NPPES is in Smyrna, TN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Grant Johnson?
The National Provider Identifier (NPI) for Grant Johnson is 1851778609, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-24.