Yongching Chang-Allen, M.A. CCC-A
NPI 1285843821 · Audiologist-Hearing Aid Fitter · Alhambra, CA
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yongching Chang-Allen, M.A. CCC-A is a Audiologist-Hearing Aid Fitter provider in Alhambra, CA (NPI 1285843821).
Provider details
- NPI number
- 1285843821
- Entity type
- Individual
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Credential
- M.A. CCC-A
- Sex
- Female
- Sole proprietor
- No
- License
- AU 1955 (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
19 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
508 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 | 254 | $39 |
| Comprehensive Hearing Test92570 | 254 | $34 |
Typical Medicare-allowed amounts for these services range $34–$39 (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
- 2007-05-21
- Last updated
- 2015-08-06
Frequently asked questions
- What is Yongching Chang-Allen's NPI number?
- Yongching Chang-Allen's National Provider Identifier (NPI) is 1285843821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yongching Chang-Allen's specialty?
- Yongching Chang-Allen is listed in the NPPES registry with a primary specialty of Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Yongching Chang-Allen located?
- Yongching Chang-Allen's practice location on file with NPPES is 41 N Garfield Ave, Alhambra, CA 91801-3556.
- What is Yongching Chang-Allen's phone number?
- The practice phone number listed in the NPPES registry for Yongching Chang-Allen is (626) 284-4633.
- Does Yongching Chang-Allen accept Medicare?
- Yongching Chang-Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yongching Chang-Allen's NPI active?
- Yes — Yongching Chang-Allen's NPI (1285843821) is active in the NPPES registry as of the last update on 2015-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.