Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariel Mari Doberstein

Nurse Practitioner in Fond Du Lac, WI · enumerated 2026.

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

National Provider Identifier

1508798091

Verified

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Registry record

Entity type Individual (Type 1)

Name Ariel Mari Doberstein

Sex Female

Practice address 430 E Division St, Fond Du Lac, WI, 54935

Phone (920) 926-4200

Fax (920) 926-8933

Enumeration date Jun 1, 2026

Last updated in NPPES Jun 20, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18560-33 (WI) 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

Is NPI 1508798091 active?

Yes, as of the latest NPPES snapshot, NPI 1508798091 is active (record last updated 2026-06-20).

How do I verify Ariel Doberstein's NPI record?

Cross-check NPI 1508798091 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-20.