Quick answers
- Does Natalie S. Fenske accept Medicare assignment?
- Yes. Medicare's clinician data says Natalie S. Fenske 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 Natalie S. Fenske's NPI number?
- 1811681679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Natalie S. Fenske works
Medicare's Facility Affiliation Data lists Natalie S. Fenske 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.
- Palo Verde HospitalBlythe, CA · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 051339
- Redlands Community HospitalRedlands, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050272
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050099
Practice locations
Addresses where Natalie S. Fenske is enrolled with Medicare (CMS data updated October 2, 2026).
- 999 San Bernardino RdUpland, CA 91786 (909) 985‑2811
Group practices
Medicare enrollment lists Natalie S. Fenske as a member of this group (CMS data updated October 2, 2026).
- Mountain View Emergency Physicians Medical Group Inc25 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Upland
Clinicians with the same Medicare primary specialty in Upland, CA — not a recommendation.
Other clinicians in Mountain View Emergency Physicians Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2023 (3 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811681679 |
| 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