Kay Khanh Bui, HAD
Hearing Instrument Specialist · Fullerton, CA
Kay Khanh Bui, HAD is a hearing instrument specialist with a practice address in Fullerton, California, and NPI 1871844688, issued on Sep 20, 2012. Check the license (California HA7651, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kay Khanh Bui
- Credential
- HAD
- Primary taxonomy
- Hearing Instrument Specialist 237700000X
- License number
- HA7651 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1321 N Harbor Blvd Ste 101, Fullerton, CA 92835
- Phone
- (714) 870-4822
- Enumerated
- Sep 20, 2012
- Record last updated
- Sep 21, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (714) 870-4804
- Entity
- Type 1 · individual
8 nearest hearing instrument specialist records → All 994 in California → Look up another NPI →
Also registered at 1321 N Harbor Blvd Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Newman, MAAudiologist1306991344
Verify Kay Khanh Bui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license HA7651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Kay Khanh Bui among 994 hearing instrument specialist records in California
Kay Khanh Bui, HAD is one of 994 hearing instrument specialist records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2012, is newer than 32% of them.
- NPI issued2012 · 32% of these records are older, 63% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2012 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 237700000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hearing Instrument Specialist providers in California
There are 994 hearing instrument specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 994 in California → Every provider in Fullerton → Hearing Instrument Specialist nationwide →
The 8 hearing instrument specialist records with the nearest ZIP codes
- Sophia BahariFullerton, CA 928351992592554
- Kay Chun, HISFullerton, CA 928351821622291
- Monica FernandezFullerton, CA 928351376691980
- Eddie Han, HISFullerton, CA 928351114496403
- Jennifer Kim, HEARING INSTRUMENT SFullerton, CA 928351396970174
- Kelvin Kim, HEARING INSTRUMENT SFullerton, CA 928351992930697
- Ashley KoFullerton, CA 928351396071726
- Evelynn MartinezFullerton, CA 928351548977580
Common questions
What is Kay Khanh Bui, HAD's NPI number?
Kay Khanh Bui, HAD's National Provider Identifier (NPI) is 1871844688, issued on Sep 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Kay Khanh Bui, HAD located?
The NPPES record lists a practice address at 1321 N Harbor Blvd Ste 101, Fullerton, CA, 92835. Phone: (714) 870-4822. Providers update this record themselves, so call before visiting.
How can I verify Kay Khanh Bui, HAD's license?
NPPES lists California license number HA7651, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.