Heidi Furth, CNP
Heidi Furth, CNP is a Family Nurse Practitioner in Sioux Falls, SD, registered under NPI 1669530671.
Getting there
The practice address on file is 4950 S MINNESOTA AVE, Sioux Falls, SD 57108. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| CP000486 | SD | Family Nurse Practitioner primary |
This provider holds licence CP000486 issued in SD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 1052313608
- Enrollment ID
- I20070209000545
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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.
What Family covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
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 | 1669530671 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 4, 2006 |
| Last updated | Feb 25, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | CNP |
| Practice address |
4950 S MINNESOTA AVE Sioux Falls, SD 57108 (605) 330-9619 Fax (605) 330-9503 |
| Mailing address |
4950 S. MINNESOTA AVE Sioux Falls, SD 57108 |
| Other identifiers |
252490
· Other 040122003 · Other 370624200 · Other CP000486 · Other (SD) 9243923 · Other (SD) R030516 · Other (SD) 4992508 · Other (SD) 57108B008 · Other 6I478FU · Other (MN) 580082100 · Medicaid (MN) 0575076 · Medicaid (IA) 1669530671 · Other 6829172 · Medicaid (SD) 6I478FU · Other (MN) 6I478FU · Other (MN) 6I478FU · Other (MN) |
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 | 6 | 6 | 9 | 5 | 3 | 0 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 3 | 9 | 1 | 3 | 0 | 6 | 5 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.