Brett Johnson, PA-C
Brett Johnson, PA-C is a Physician Assistant in Deadwood, SD, registered under NPI 1003344789.
Getting there
Here is what surrounds this office in Deadwood, based on OpenStreetMap data collected Sep 20, 2026. Parking is available about 246 ft away. The nearest transit stop is 0.41 mi away. If you arrive early, there is a coffee shop 0.37 mi away.
Getting here and what is nearby
Parking 181 ft ~1 min
Parking 184 ft ~1 min
Parking 246 ft ~1 min
Restaurant Taco John's 336 ft ~2 min
86 Charles Street, Deadwood 57732
Coffee Lou Lou's 543 ft ~3 min
Hotel Cedar Wood Inn 660 ft ~3 min
Hotel Deadwood Miners Hotel & Restaurant 973 ft ~4 min
Convenience Pack Horse Liquor Convenience 0.33 mi ~7 min
Hotel Deadwood Mountain Grand Hotel, a Holiday Inn Resort 0.33 mi ~7 min
Restaurant Jacobs Brewhouse & Grocer 0.36 mi ~8 min
Coffee Pump House Coffee & Deli 0.37 mi ~8 min
Restaurant Burnouts Pizza 0.39 mi ~8 min
Transit 0.41 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 |
|---|---|---|
| 1081 | SD | Physician Assistant primary |
This provider holds licence 1081 issued in SD. 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 Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
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 | 1003344789 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 25, 2017 |
| Last updated | May 25, 2017 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PA-C |
| Practice address |
61 CHARLES ST Deadwood, SD 57732 (605) 717-6000 |
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 | 4 | 4 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 4 | 8 | 7 | 7 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.