Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aletha Kay Erpenbach, NP-C

Family Nurse Practitioner in Larchwood, IA · enumerated 2009 · practices at Avera Mckennan.

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

National Provider Identifier

1811223639

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Aletha Kay Erpenbach

Credential NP-C

Sex Female

Practice address 916 Holder St, Larchwood, IA, 51241

Phone (712) 477-2185

Fax (712) 477-2186

Enumeration date Oct 29, 2009

Last updated in NPPES Apr 18, 2022

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CP000579 (SD) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A137379 (IA) Primary

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

Where does Aletha Erpenbach practice?

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

What is the NPI number for Aletha Erpenbach?

The National Provider Identifier (NPI) for Aletha Erpenbach is 1811223639, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Avera Mckennan Primary Care Clinic/Center · Larchwood, IA NPI 1871527507

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-18.