Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Calvin So
Pharmacist in Duluth, GA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639778459
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Registry record
Entity type Individual (Type 1)
Name Calvin So
Sex Male
Practice address 3455 Peachtree Industrial Blvd, Duluth, GA, 30096
Phone (770) 476-7985
Enumeration date Oct 22, 2020
Last updated in NPPES Oct 22, 2020
Taxonomy & licenses
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 Calvin So practice?
The practice location on file with NPPES is in Duluth, GA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Calvin So?
The National Provider Identifier (NPI) for Calvin So is 1639778459, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-22.