NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kerstin Marnin

Clinical Social Worker in Kalona, IA · enumerated 2021 · practices at Iowa Family Counseling LLC.

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

National Provider Identifier

1891365631

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Kerstin Marnin
Sex Female
Practice address 409 B Ave, Kalona, IA, 52247
Enumeration date Jun 24, 2021
Last updated in NPPES Jun 24, 2021

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier Type State Issuer
006941 Other IA LMSW

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 1891365631 active?
Yes, as of the latest NPPES snapshot, NPI 1891365631 is active (record last updated 2021-06-24).
How do I verify Kerstin Marnin's NPI record?
Cross-check NPI 1891365631 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 2021-06-24.