Quick answers
- Does Stefanie A. Ellis accept Medicare assignment?
- Yes. Medicare's clinician data says Stefanie A. Ellis 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.
- How many Medicare patients does Stefanie A. Ellis see?
- In 2024, CMS data shows 166 Original Medicare patients and 1,229 services for Stefanie A. Ellis. This counts Original Medicare only and measures volume, not quality.
- What is Stefanie A. Ellis's NPI number?
- 1558389114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Stefanie A. Ellis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 166 |
|---|---|
| Services billed to Medicare | 1,229 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)400 services
- Insertion of needle into vein for collection of blood sample (36415)278 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)174 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)97 services
- Administration of influenza virus vaccine (G0008)50 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Depression33%
- Osteoporosis31%
- Diabetes30%
Hospitals where Stefanie A. Ellis works
Medicare's Facility Affiliation Data lists Stefanie A. Ellis 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.
- Mercy Hospital Fort SmithFort Smith, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040062
Practice locations
Addresses where Stefanie A. Ellis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 S Waldron RdFort Smith, AR 72903 (479) 221‑9922
- 3505 S 79th StFort Smith, AR 72903 (479) 709‑8686
Group practices
Medicare enrollment lists Stefanie A. Ellis as a member of this group (CMS data updated October 2, 2026).
- Mercy Clinic Fort Smith Communities372 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Fort Smith
Clinicians with the same Medicare primary specialty in Fort Smith, AR — not a recommendation.
Other clinicians in Mercy Clinic Fort Smith Communities
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558389114 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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