Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mason Mcmillian Davis, PHARM.D.

Pharmacist in Rolla, MO · enumerated 2022.

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

National Provider Identifier

1689386005

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Registry record

Entity type Individual (Type 1)

Name Dr. Mason Mcmillian Davis

Credential PHARM.D.

Sex Male

Practice address 500 S Bishop Ave, Rolla, MO, 65401

Phone (573) 201-5454

Enumeration date Dec 16, 2022

Last updated in NPPES Dec 16, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 2022044138 (MO) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mason Davis?

Mason Davis is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Matthew Blanton Optometrist · Rolla, MO NPI 1457391575 Wal-Mart Stores East Lp Community/Retail Pharmacy · Rolla, MO NPI 1699792911 Dennis Garstang Optometrist · Rolla, MO NPI 1336158526 Wal-Mart Stores East, Lp Eyewear Supplier · Rolla, MO NPI 1821171463 Regional Services Family Nurse Practitioner · Rolla, MO NPI 1730491416 Evan Morrison Pharmacist · Rolla, MO NPI 1891395844 Rachel Saltzman Pharmacist · Rolla, MO NPI 1336749175 Suzanne Korns Pharmacist · Rolla, MO NPI 1861093387

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-16.