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Michael Ryan Trythall, AU.D.

Audiologist-Hearing Aid Fitter in Pasadena, CA · enumerated 2007 · practices at Pasadena Ear and Hearing, Inc..

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

National Provider Identifier

1811177553

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Registry record

Entity type Individual (Type 1)
Name Michael Ryan Trythall
Credential AU.D.
Sex Male
Practice address 50 Alessandro Pl Ste 360, Pasadena, CA, 91105
Phone (626) 314-3733
Fax (626) 314-3735
Enumeration date Nov 9, 2007
Last updated in NPPES Aug 19, 2025

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License AU2225 (CA) Primary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

Other identifiers

Identifier Type State Issuer
9165139 Medicaid CA -
AU2225 Other CA CALIFORNIA SPEECH-LANGUAGE PATHOLOGY, AUDIOLOGY AND HEARING AID DISPENSERS BOARD

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.

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Frequently asked questions

Is NPI 1811177553 active?
Yes, as of the latest NPPES snapshot, NPI 1811177553 is active (record last updated 2025-08-19).
How do I verify Michael Trythall's NPI record?
Cross-check NPI 1811177553 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 2025-08-19.