Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert Charles Muller, R.PH.

Pharmacist in Fitchburg, WI · enumerated 2008.

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

National Provider Identifier

1063699890

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Registry record

Entity type Individual (Type 1)

Name Mr. Robert Charles Muller

Credential R.PH.

Sex Male

Practice address 3051 Cahill Main, Fitchburg, WI, 53711

Phone (608) 661-7220

Fax (608) 661-7216

Enumeration date Jan 23, 2008

Last updated in NPPES Jan 23, 2008

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License R-7989 (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

What specialty is Robert Muller?

Robert Muller 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-23.