Katherine Nguyen
Katherine Nguyen is a provider specialising in Audiologist-Hearing Aid Fitter in Cincinnati, OH, registered under NPI 1003103680.
Getting there
Here is what surrounds this office in Cincinnati, based on OpenStreetMap data collected Aug 31, 2026. Parking is available about 0.38 mi away. The nearest transit stop is 548 ft away. If you arrive early, there is a coffee shop 473 ft away.
Getting here and what is nearby
Transit Montgomery Rd & Ravenal Ct 37 ft ~1 min
Transit 479 ft ~2 min
Coffee Proud Hound Coffee 473 ft ~2 min
Transit 548 ft ~3 min
Parking 0.31 mi ~7 min
Parking 0.38 mi ~8 min
Convenience United Dairy Farmers 0.42 mi ~9 min
Gas station United Dairy Farmers 0.45 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A.01780 | OH | Audiologist-Hearing Aid Fitter primary |
This provider holds licence A.01780 issued in OH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Audiologist-Hearing Aid Fitter covers
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". NUCC Health Care Provider Taxonomy, code 237600000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003103680 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 5, 2011 |
| Last updated | Oct 26, 2011 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
9200 MONTGOMERY RD SUITE 2B Cincinnati, OH 45242 (513) 891-8700 Fax (513) 891-8703 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 0 | 3 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 6 | 6 | 7 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.