Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eric Daniel Dierkes, RPH

Pharmacist in Ada, OH · enumerated 2020.

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

National Provider Identifier

1154949998

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Registry record

Entity type Individual (Type 1)

Name Dr. Eric Daniel Dierkes

Credential RPH

Sex Male

Practice address 525 S Main St, Ada, OH, 45810

Phone (419) 772-2299

Enumeration date Jul 8, 2020

Last updated in NPPES Jul 8, 2020

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 03439839 (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

What specialty is Eric Dierkes?

Eric Dierkes 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.

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.

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Michael Rush Pharmacist · Ada, OH NPI 1972501484 Chandalar West Athletic Trainer · Ada, OH NPI 1124117940 Owen Keller Athletic Trainer · Ada, OH NPI 1033267760 Michael Pugacz Student in an Organized Health Care Education/Training Program · Ada, OH NPI 1336334838 Rebecca Diller Professional Counselor · Ada, OH NPI 1679709620 Kelly Shields Pharmacist · Ada, OH NPI 1992023899 Marcey Bell Clinical Social Worker · Ada, OH NPI 1598175093 Jessica Hinson Pharmacist · Ada, OH NPI 1578962551

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-08.