Dr. Gregory Johnston M.D.
About this NPIWhat this record shows.
NPI 1447371497 is registered to Dr. Gregory Johnston M.D., a General Practice practising at 515 N 18th St in Phoenix, Arizona. General Practice is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Gregory Johnston M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Gregory Johnston M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Gregory Johnston M.D. directly at (602) 470-0021.
Frequently asked
Yes. NPI 1447371497 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
General Practice is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (602) 470-0021.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Gregory Johnston M.D. is a Type-1 individual NPI.