Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Gregory J Walter, R.PH.

Pharmacist in St. Marys, OH · enumerated 2010 · practices at Schwieterman'S Drug Store Inc.

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

National Provider Identifier

1851692669

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Registry record

Entity type Individual (Type 1)

Name Mr. Gregory J Walter

Credential R.PH.

Sex Male

Practice address 1052 E. Spring St., St. Marys, OH, 45885

Phone (419) 394-3219

Fax (419) 394-6289

Enumeration date Nov 10, 2010

Last updated in NPPES Oct 5, 2017

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 03223403 (OH) 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 Walter practice?

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

What is the NPI number for Gregory Walter?

The National Provider Identifier (NPI) for Gregory Walter is 1851692669, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Kendra Niekamp Pharmacist · St Marys, OH NPI 1720080633 Keith Jacobs Pharmacist · St Marys, OH NPI 1154313617 Schwieterman'S Drug Store Inc Community/Retail Pharmacy · Saint Marys, OH NPI 1720008022

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-05.