Quick answers
- Does Juliana Johnson Ferri Guerra accept Medicare assignment?
- Yes. Medicare's clinician data says Juliana Johnson Ferri Guerra accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Juliana Johnson Ferri Guerra's NPI number?
- 1003435579. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Juliana Johnson Ferri Guerra works
Medicare's Facility Affiliation Data lists Juliana Johnson Ferri Guerra at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Orange City Area Health SystemOrange City, IA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 161360
- Ortonville Area Health ServicesOrtonville, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241342
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430027
- Sanford Westbrook Medical CenterWestbrook, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241302
- Sanford Worthington Medical CenterWorthington, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240022
Practice locations
Addresses where Juliana Johnson Ferri Guerra is enrolled with Medicare (CMS data updated October 2, 2026).
- 1301 W 18th StSioux Falls, SD 57105 (605) 312‑2200
- 1305 W 18th StSioux Falls, SD 57105
- 4405 E 26th StSioux Falls, SD 57103
Group practices
Medicare enrollment lists Juliana Johnson Ferri Guerra as a member of this group (CMS data updated October 2, 2026).
- Sanford Medical Center857 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Other clinicians in Sanford Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003435579 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians