Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael Joseph Sullivan, AU.D.

Audiologist in Richfield, MN · enumerated 2009.

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

National Provider Identifier

1508191388

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Joseph Sullivan

Credential AU.D.

Sex Male

Practice address Richfield, MN, 55423

Phone (612) 293-7816

Enumeration date Oct 12, 2009

Last updated in NPPES Jun 2, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 8481 (MN) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

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

How do I verify Michael Sullivan's NPI record?

Cross-check NPI 1508191388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1508191388 active?

Yes, as of the latest NPPES snapshot, NPI 1508191388 is active (record last updated 2010-06-02).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-02.