David Feist, PA-C
David Feist, PA-C is a Medical Physician Assistant in Watertown, SD, registered under NPI 1003243437.
Getting there
Here is what surrounds this office in Watertown, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 204 ft away.
Getting here and what is nearby
Parking 120 ft ~1 min
Parking 151 ft ~1 min
Parking 204 ft ~1 min
Hotel Prairie Lakes Caring Clubhouse 594 ft ~3 min
Restaurant Hospital Cafeteria 577 ft ~3 min
401 9th Avenue NW, 57201
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 |
|---|---|---|
| 1374 | SD | Medical Physician Assistant primary |
| 5440 | AZ | Medical Physician Assistant |
Licences are recorded in 2 states: SD, AZ. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Physician Assistant
- PAC ID
- 1153556006
- Enrollment ID
- I20220721000210
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Arizona and South Dakota. The practice address on file is in Watertown, SD, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 1374
- Specialty
- Medical Physician Assistant
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Medical covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363AM0700X
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 | |
|---|---|---|---|---|
| 363AM0700X | Medical Physician Assistant Medical | 1374 | SD | primary |
| 363AM0700X | Medical Physician Assistant Medical | 5440 | AZ |
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 | 1003243437 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 30, 2013 |
| Last updated | Jun 26, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PA-C |
| Practice address |
401 9TH AVE NW Watertown, SD 57201 (605) 882-7000 Fax (605) 882-7819 |
| Mailing address |
PO BOX 1210 Watertown, SD 57201 |
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 | 2 | 4 | 3 | 4 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 6 | 4 | 6 |
Sum = 53 · next multiple of 10 = 60 · 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.