Michael Trythall, AU.D.
NPI 1811177553 · Audiologist-Hearing Aid Fitter · Pasadena, CA
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Trythall, AU.D. is a Audiologist-Hearing Aid Fitter provider in Pasadena, CA (NPI 1811177553).
Provider details
- NPI number
- 1811177553
- Entity type
- Individual
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Credential
- AU.D.
- Sex
- Male
- Sole proprietor
- No
- License
- AU2225 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
902 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Comprehensive Hearing and Speech Recognition Test92557 | 378 | $37 |
| Test for Eardrum and Muscle Function92550 | 286 | $22 |
| Placement of Ear Probe for Computerized Measurement of Repeated Sounds With Interpretation and Report92588 | 152 | $34 |
| Test to Assess Middle Ear Function92567 | 86 | $17 |
Typical Medicare-allowed amounts for these services range $17–$37 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-09
- Last updated
- 2025-08-19
- Certified
- 2025-08-19
Frequently asked questions
- What is Michael Trythall's NPI number?
- Michael Trythall's National Provider Identifier (NPI) is 1811177553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Trythall's specialty?
- Michael Trythall is listed in the NPPES registry with a primary specialty of Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Michael Trythall located?
- Michael Trythall's practice location on file with NPPES is 50 Alessandro Pl Ste 360, Pasadena, CA 91105-3105.
- What is Michael Trythall's phone number?
- The practice phone number listed in the NPPES registry for Michael Trythall is (626) 314-3733.
- Does Michael Trythall accept Medicare?
- Michael Trythall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Trythall's NPI active?
- Yes — Michael Trythall's NPI (1811177553) is active in the NPPES registry as of the last update on 2025-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.