John F Hammes

John F Hammes is a Pharmacist provider (Pharmacist) practicing in Cedarburg, WI, registered in the NPPES registry with NPI 1588291728 since 2020. Practices at Wisconsin Cvs Pharmacy LLC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1588291728
Entity type	Individual (Type 1)
Name	John F Hammes
Sex	Male
Practice address	Cedarburg, WI, 53012
Phone	2623775685
Fax	2623771940
Enumeration date	2020-03-26
Last updated in NPPES	2020-03-26

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
183500000X	Pharmacist	Primary	8238-40	WI

Copy-ready billing details

Provider: John Hammes
NPI: 1588291728
Taxonomy: 183500000X (Pharmacist)
Address: Cedarburg, WI, 53012

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1528009495	Wisconsin Cvs Pharmacy LLC	Organization	Pharmacy	Cedarburg, WI
1316574841	Muhammad Ibrahim	Individual	Pharmacist	Cedarburg, WI
1679101067	James Erlwig	Individual	Pharmacist	Cedarburg, WI

Verify this record

Cross-check NPI 1588291728 against the authoritative CMS record: view John F Hammes on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is John Hammes?

John Hammes 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-03-26.