NORTHLAND HEARING CENTERS, INC.
NORTHLAND HEARING CENTERS, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003675307, based in Princeton, IL. It is classified under Hearing and Speech Clinic/Center.
Getting there
Here is what surrounds this office in Princeton, based on OpenStreetMap data collected Oct 13, 2026. Parking is available about 0.22 mi away. A pharmacy sits 447 ft from the entrance (Princeton Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Pizza Hut 146 ft ~1 min
Parking 344 ft ~2 min
Pharmacy Princeton Pharmacy 447 ft ~2 min
Restaurant Dairy Queen 403 ft ~2 min
Parking 479 ft ~2 min
Gas station Fast Stop 842 ft ~4 min
Parking 0.22 mi ~5 min
Restaurant Jimmy John's 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Hearing and Speech covers
An entity, facility, or distinct part of a facility providing diagnostic, treatment, prescriptive, and therapy services related to congenital and acquired conditions and diseases that affect hearing capacity and speech ability. NUCC Health Care Provider Taxonomy, code 261QH0700X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003675307 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Mar 18, 2024 |
| Last updated | May 8, 2024 |
| Status | Active |
| Practice address |
504 N MAIN ST Princeton, IL 61356 (815) 224-2445 |
| Mailing address |
6700 WASHINGTON AVE S Eden Prairie, MN 55344 |
| Other names |
Hammers Hearing Care Center Former Legal Name |
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 | 6 | 7 | 5 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 1 | 3 | 0 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.