Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrew L Horstman, PA

Medical Physician Assistant in La Crosse, WI · enumerated 2005.

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

National Provider Identifier

1255336780

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Andrew L Horstman

Credential PA

Sex Male

Practice address 1836 South Ave, La Crosse, WI, 54601

Phone (608) 782-7300

Enumeration date Jun 21, 2005

Last updated in NPPES Sep 22, 2015

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 996 (WI) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Other identifiers

Identifier	Type	State	Issuer
42972600	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

What is the NPI number for Andrew Horstman?

The National Provider Identifier (NPI) for Andrew Horstman is 1255336780, a Type 1 (individual) record in the CMS NPPES registry.

Where does Andrew Horstman practice?

The practice location on file with NPPES is in La Crosse, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-22.