Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Gregory James Metternich, RPH

Pharmacist in Ada, MI · enumerated 2016.

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

National Provider Identifier

1588017099

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Registry record

Entity type Individual (Type 1)

Name Mr. Gregory James Metternich

Credential RPH

Sex Male

Practice address 10320 Deer Creek Dr Se, Ada, MI, 49301

Phone (616) 319-7102

Enumeration date Jul 20, 2016

Last updated in NPPES Jul 20, 2016

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 5302027766 (MI) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

Where does Gregory Metternich practice?

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

What is the NPI number for Gregory Metternich?

The National Provider Identifier (NPI) for Gregory Metternich is 1588017099, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-20.