Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William F. Petzke, RPH
Pharmacist in Grafton, WI · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548504483
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Registry record
Entity type Individual (Type 1)
Name Mr. William F. Petzke
Credential RPH
Sex Male
Practice address 1771 Wisconsin Ave, Grafton, WI, 53024
Phone (262) 375-0016
Fax (262) 375-3519
Enumeration date Nov 15, 2012
Last updated in NPPES Nov 15, 2012
Taxonomy & licenses
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.
Frequently asked questions
Where does William Petzke practice?
The practice location on file with NPPES is in Grafton, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Petzke?
The National Provider Identifier (NPI) for William Petzke is 1548504483, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-15.