Juliana Ferri Guerra, MD
Juliana Ferri Guerra, MD is an Endocrinology, Diabetes & Metabolism Physician in Sioux Falls, SD, registered under NPI 1003435579.
Getting there
Here is what surrounds this office in Sioux Falls, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 329 ft away. The nearest transit stop is 462 ft away.
Getting here and what is nearby
Parking 151 ft ~1 min
Parking South Parking Ramp 342 ft ~2 min
1516 West 22nd Street, Sioux Falls
Parking 329 ft ~2 min
Transit 462 ft ~2 min
Hotel Valley Inn Hotel 0.20 mi ~4 min
Restaurant Sunny's Pizzeria 0.38 mi ~8 min
Restaurant The Pickle Barrel 0.45 mi ~9 min
1612 South Western Avenue, Sioux Falls 57105
Mo-Fr 11:00-20:00; Sa 11:00-17:00
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 |
|---|---|---|
| 16839 | SD | Endocrinology, Diabetes & Metabolism… primary |
This provider holds licence 16839 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 - Endocrinology
- PAC ID
- 0547620296
- Enrollment ID
- I20250918002630
Medicare enrolment is recorded as approved under the provider type Practitioner - Endocrinology. 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 Endocrinology, Diabetes & Metabolism covers
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems. NUCC Health Care Provider Taxonomy, code 207RE0101X
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 | 1003435579 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 14, 2020 |
| Last updated | Sep 4, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
1305 W 18TH ST Sioux Falls, SD 57105 (605) 328-8700 |
| Other names |
Juliana Guerra Doing Business As |
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 | 4 | 3 | 5 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 3 | 1 | 5 | 5 |
Sum = 51 · next multiple of 10 = 60 · 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.