Deanna Sherman
Deanna Sherman is a Hearing Instrument Specialist in Helena, MT, registered under NPI 1003399890. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Helena, based on OpenStreetMap data collected Sep 24, 2026. Parking is available about 387 ft away. A pharmacy sits 0.32 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.38 mi away.
Getting here and what is nearby
Parking 117 ft ~1 min
Restaurant Suds Hut 105 ft ~1 min
Parking 256 ft ~1 min
Parking 387 ft ~2 min
Restaurant Arby's 469 ft ~2 min
Restaurant Taco Bell 608 ft ~3 min
Convenience Town Pump 871 ft ~4 min
Gas station Conoco 869 ft ~4 min
Convenience Town Pump 0.23 mi ~5 min
Gas station Conoco 0.23 mi ~5 min
Coffee City Brew Coffee 0.26 mi ~6 min
Grocery Dinners Done Right 0.30 mi ~6 min
Pharmacy CVS Pharmacy 0.32 mi ~7 min
Coffee Queen City Coffee 0.38 mi ~8 min
2125 North Last Chance Gulch Street, Helena 59601-0849
Mo-Sa 06:30-14:00; Su 07:30-14:00
Coffee Just Kiddin' Around Koffee House 0.38 mi ~8 min
2125 North Last Chance Gulch Street, Helena 59601
Mo-Th 06:30-13:30, Fr 06:30-13:00, Sa 07:30-13:00
Grocery WinCo Foods 0.42 mi ~9 min
Hotel Holiday Inn Express 0.47 mi ~10 min
Gas station Exxon 0.48 mi ~10 min
Convenience Town Pump 0.49 mi ~10 min
Grocery Albertsons 0.52 mi ~11 min
3151 North Montana Avenue, Helena 59602
Mo-Fr 06:00-23:00; Sa 06:00-23:00; Su 06:00-23:00
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 |
|---|---|---|
| 1376 | MT | Hearing Instrument Specialist primary |
| 1376 | MT | Audiologist-Hearing Aid Fitter |
This provider holds licence 1376 issued in MT. 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 Hearing Instrument Specialist covers
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society NUCC Health Care Provider Taxonomy, code 237700000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 237700000X | Hearing Instrument Specialist | 1376 | MT | primary |
| 237600000X | Audiologist-Hearing Aid Fitter | 1376 | MT |
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 | 1003399890 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 8, 2018 |
| Last updated | Nov 24, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1235 BIRCH ST STE 5 Helena, MT 59601 (406) 438-7173 |
| Mailing address |
2646 WINNE AVE Helena, MT 59601 |
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 | 3 | 9 | 9 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 9 | 8 | 9 |
Sum = 70 · next multiple of 10 = 70 · 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.