Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Stephan Opacich, RPH

Pharmacist in Appleton, WI · enumerated 2013.

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

National Provider Identifier

1619313533

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Registry record

Entity type Individual (Type 1)

Name Mr. Stephan Opacich

Credential RPH

Sex Male

Practice address 1000 W Northland Ave, Appleton, WI, 54914

Phone (920) 739-6871

Fax (920) 731-6167

Enumeration date May 18, 2013

Last updated in NPPES May 18, 2013

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 10463-40 (WI) 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

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 Stephan Opacich?

Stephan Opacich 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-18.