MICHAEL RYAN TRYTHALL AU.D.
NPI 1811177553
Audiologist-Hearing Aid Fitter in Pasadena, CA

Q: What is Michael Trythall's NPI number?

The NPI number for Michael Trythall is 1811177553. It was assigned to this individual provider in the NPPES registry on November 9, 2007.

Q: What is Michael Trythall's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Trythall was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 09, 2007

86.94/100

CMS Quality Rating

50 ALESSANDRO PL STE 360, PASADENA, CA 91105(626) 314-3733(626) 314-3735 Get Directions Write a Review

NPPES record last updated: August 19, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 10, 2025, Mar 3, 2023, Dec 2, 2022 and 2 more (5 updates tracked since 2019).

On this page

About Michael Ryan Trythall Au.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL RYAN TRYTHALL AU.D. (NPI 1811177553) is an individual audiologist-hearing aid fitter provider in Pasadena, California, licensed in California (AU2225) and active in the NPI registry since November 2007. He is a graduate of Other (2002).

NPPES Registry Identity

NPI1811177553

Entity TypeIndividualMale

Primary Taxonomy237600000X

Provider Legal NameMICHAEL RYAN TRYTHALLCredential: AU.D.

Location Address50 ALESSANDRO PL STE 360Pasadena, CA 91105-3105

Mailing Address50 Alessandro Pl Ste 360Pasadena, CA 91105-3105 · (626) 314-3733 · Fax (626) 314-3735

Phone(626) 314-3733

Fax(626) 314-3735

Sole ProprietorNo

Medical School CMSOtherGraduated 2002

Enumeration DateNovember 9, 2007

Last NPPES UpdateAugust 19, 20255 updates tracked since enumeration

NPPES CertifiedAugust 19, 2025

✔ NPI 1811177553 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers

Taxonomy Code237600000X

License✔ Licensed in CA · AU2225

Definition

An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.

50 ALESSANDRO PL STE 360, Pasadena, CA 91105

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Other Identifiers 2

Medicaid9165139CA

OtherAU2225CA · California Speech-language Pathology, Audiology And Hearing Aid Dispensers Board

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Ryan Trythall Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1052476009

PECOS Enrollment IDI20090209000227

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Comprehensive hearing and speech recognition test 92557

A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.

378 services374 patients

Test for eardrum and muscle function 92550

This test assesses the health of your eardrum and muscles linked to hearing. A small device is placed in your ear that creates pressure changes and sounds. Your ear's responses are recorded to determine if they are functioning properly.

286 services286 patients

Placement of ear probe for computerized measurement of repeated sounds with interpretation and report 92588

This procedure involves placing a probe in your ear to measure how it responds to repeated sounds. The data is then interpreted by a computer to assess your hearing health. The findings are compiled into a report for further evaluation.

152 services152 patients

Test to assess middle ear function 92567

A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.

86 services85 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.94/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

73.89

Improvement Activities

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. KARINA RICO

Dietitian, Registered

50 ALESSANDRO PL STE 360
PASADENA, CA 91105

Los Angeles County (626) 545-1233

PASADENA EAR AND HEARING, INC.

Audiologist-Hearing Aid Fitter

50 ALESSANDRO PL STE 360
PASADENA, CA 91105

Los Angeles County (626) 314-3733

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Trythall's NPI number?

The NPI number for Michael Trythall is 1811177553. It was assigned to this individual provider in the NPPES registry on November 9, 2007.

Where is Michael Trythall located?

Michael Trythall practices at 50 Alessandro Pl Ste 360, Pasadena, CA 91105. The listed phone number is (626) 314-3733.

What is Michael Trythall's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Is Michael Trythall enrolled in Medicare?

Yes. Michael Trythall is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Michael Trythall was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.