Kathryn Olsen, AU.D.
Kathryn Olsen, AU.D. is a provider specialising in Audiologist in Brookfield, WI, registered under NPI 1003027210.
Getting there
Here is what surrounds this office in Brookfield, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.20 mi away. The nearest transit stop is 0.40 mi away, served by North & 12011 West.
Getting here and what is nearby
Parking 291 ft ~2 min
Parking 618 ft ~3 min
Parking 0.20 mi ~4 min
Restaurant Had's Indian Cuisine 0.22 mi ~5 min
2345 North 124th Street, Brookfield 53005
Restaurant Jet's Pizza 0.26 mi ~6 min
2491 North 124th Street, Brookfield 53005
Gas station BP 0.28 mi ~6 min
12324 West North Avenue, Wauwatosa 53226
Transit 2420 North 124th Street 0.29 mi ~6 min
Gas station Mobil 0.29 mi ~6 min
12331 West North Avenue, Wauwatosa 53226
Convenience Mobil Mart 0.30 mi ~6 min
12331 West North Avenue, Wauwatosa 53226
Convenience Your Open Pantry 0.30 mi ~6 min
12324 West North Avenue, Wauwatosa 53226
Restaurant McDonald's 0.30 mi ~7 min
12324 West North Avenue, Wauwatosa 53226
05:00-23:00
Transit North & 123rd Street 0.33 mi ~7 min
Transit North & 12011 West 0.40 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 |
|---|---|---|
| 35-156 | WI | Audiologist primary |
This provider holds licence 35-156 issued in WI. 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 covers
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy. NUCC Health Care Provider Taxonomy, code 231H00000X
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 | 1003027210 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 28, 2007 |
| Last updated | Mar 3, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | AU.D. |
| Practice address |
12780 W NORTH AVE SUITE B Brookfield, WI 53005 (262) 784-9300 |
| Mailing address |
12780 W. NORTH AVENUE SUITE B Brookfield, WI 53005 |
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 | 0 | 2 | 7 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 5 | 2 | 2 |
Sum = 40 · next multiple of 10 = 40 · 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.