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MS. YONGCHING CHANG-ALLEN M.A. CCC-A
NPI 1285843821
Audiologist-Hearing Aid Fitter in Alhambra, CA

Active since May 21, 2007Accepts Medicare Assignment
41 N GARFIELD AVE, SUITE #101, ALHAMBRA, CA 91801(626) 284-4633(626) 284-4162 Get Directions Write a Review

NPPES record last updated: August 6, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Yongching Chang-allen M.a. Ccc-a NPPES

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

MS. YONGCHING CHANG-ALLEN M.A. CCC-A (NPI 1285843821) is an individual audiologist-hearing aid fitter provider in Alhambra, California, licensed in California (AU 1955) and active in the NPI registry since May 2007. She is a graduate of Other (1998).

NPPES Registry Identity

NPI1285843821
Entity TypeIndividualFemale
Primary Taxonomy237600000X
Provider Legal NameMS. YONGCHING CHANG-ALLENCredential: M.A. CCC-A
Location Address41 N GARFIELD AVE, SUITE #101Alhambra, CA 91801-3556
Mailing Address41 N Garfield Ave, Suite #101Alhambra, CA 91801-3556 · (626) 284-4633 · Fax (626) 284-4162
Phone(626) 284-4633
Fax(626) 284-4162
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateMay 21, 2007
Last NPPES UpdateAugust 6, 2015
✔ NPI 1285843821 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 · AU 1955
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.
41 N GARFIELD AVE, Alhambra, CA 91801
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Other Identifiers 3

Medicare UPINP24483CA
MedicaidAU0019550CA
Medicare ID-Type UnspecifiedWAUD1955BCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Yongching Chang-allen M.a. Ccc-a is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931367802
PECOS Enrollment IDI20120223000381

Medicare Billing Reassignment

Medicare enrollment records show Yongching Chang-allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Alhambra Audiology Inc
Same address
Audiologist-Hearing Aid Fitter
41 N GARFIELD AVE, SUITE 101
Alhambra, CA 91801
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1285667238 (626) 284-4633

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.
254 services250 patients
Comprehensive hearing test 92570
A comprehensive hearing test assesses how well you can hear different sounds. It involves a series of examinations, including pure-tone tests, speech tests, and physical examinations of the ears. This helps identify any hearing loss and its potential causes. It's a non-painful and straightforward process.
254 services250 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$62.96 typical visit price
range $62.96 – $187.60
Typical copayment $15.74 (range $15.74 – $46.90)
Most-billed visit code 99202
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

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

LI QING LI LAC
Acupuncturist
41 N GARFIELD AVE, STE 103
ALHAMBRA, CA 91801
Los Angeles County (626) 588-2948
YUEH GUEI S BOOK PT INC
Physical Therapist
41 N GARFIELD AVE, SUITE 103
ALHAMBRA, CA 91801
Los Angeles County (626) 588-2948
WEILIAN S TANG L.AC
Acupuncturist
41 N GARFIELD AVE, SUITE 103
ALHAMBRA, CA 91801
Los Angeles County (626) 679-2047
ALHAMBRA AUDIOLOGY INC
Audiologist-Hearing Aid Fitter
41 N GARFIELD AVE, SUITE 101
ALHAMBRA, CA 91801
Los Angeles County (626) 284-4633
Y G BOOK PT
Physical Therapist
41 N GARFIELD AVE, SUITE 103
ALHAMBRA, CA 91801
Los Angeles County (626) 588-2948
DR. JIMMY TANG HANG PT, DPT, CSCS
Physical Therapist
41 N GARFIELD AVE, SUITE 102
ALHAMBRA, CA 91801
Los Angeles County (626) 236-3905
ALL SET REHAB INC
Physical Medicine & Rehabilitation
41 N GARFIELD AVE, 103
ALHAMBRA, CA 91801
Los Angeles County (626) 623-0343
GUSTAVO NINO D.C.
Chiropractor
41 N GARFIELD AVE, SUITE 101A
ALHAMBRA, CA 91801
Los Angeles County (626) 458-2339

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 Yongching Chang-allen's NPI number?

The NPI number for Yongching Chang-allen is 1285843821. It was assigned to this individual provider in the NPPES registry on May 21, 2007.

Where is Yongching Chang-allen located?

Yongching Chang-allen practices at 41 N Garfield Ave Suite #101, Alhambra, CA 91801. The listed phone number is (626) 284-4633.

What is Yongching Chang-allen's specialty?

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

Is Yongching Chang-allen enrolled in Medicare?

Yes. Yongching Chang-allen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Yongching Chang-allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yongching Chang-allen reassigns Medicare benefits to Alhambra Audiology Inc (Alhambra, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yongching Chang-allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Yongching Chang-allen was last updated on August 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.