Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mike Wayne Shaffer

Q: What is the NPI number for Mike Shaffer?

The National Provider Identifier (NPI) for Mike Shaffer is 1538915939, a Type 1 (individual) record in the CMS NPPES registry.

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Monterey, CA · enumerated 2024.

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

National Provider Identifier

1538915939

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Registry record

Entity type Individual (Type 1)

Name Mike Wayne Shaffer

Sex Male

Practice address 23625 Holman Hwy, Monterey, CA, 93940

Phone (831) 625-4905

Enumeration date Apr 26, 2024

Last updated in NPPES Apr 27, 2024

Taxonomy & licenses

1835P0018X Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist Pharmacy Service Providers · License 55897 (CA) Primary

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.

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Frequently asked questions

Where does Mike Shaffer practice?

The practice location on file with NPPES is in Monterey, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mike Shaffer?

The National Provider Identifier (NPI) for Mike Shaffer is 1538915939, 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 2024-04-27.