Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph C Darin II

Physician Assistant in Grafton, WI · enumerated 2009.

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

National Provider Identifier

1124353883

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Joseph C Darin II

Sex Male

Practice address 215 Washington St, Grafton, WI, 53024

Phone (262) 375-3700

Fax (262) 376-6032

Enumeration date Oct 13, 2009

Last updated in NPPES Mar 7, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1084942 (GA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4380 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
1124353883	Medicaid	WI	-

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 NPI 1124353883 active?

Yes, as of the latest NPPES snapshot, NPI 1124353883 is active (record last updated 2022-03-07).

How do I verify Joseph Darin's NPI record?

Cross-check NPI 1124353883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-07.