Quick answers
- Does Alexandria Peterson accept Medicare assignment?
- Yes. Medicare's clinician data says Alexandria Peterson 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 Alexandria Peterson see?
- In 2024, CMS data shows 84 Original Medicare patients and 96 services for Alexandria Peterson. This counts Original Medicare only and measures volume, not quality.
- What is Alexandria Peterson's NPI number?
- 1497493431. 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 Alexandria Peterson, 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 | 84 |
|---|---|
| Services billed to Medicare | 96 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 60 |
Most frequent services
- Emergency department visit with moderate level of medical decision making (99284)58 services
- Emergency department visit with high level of medical decision making (99285)27 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 cholesterol60%
- Arthritis44%
- Anxiety44%
- Diabetes36%
- Depression31%
Hospitals where Alexandria Peterson works
Medicare's Facility Affiliation Data lists Alexandria Peterson 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.
- Christian Hospital NortheastSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260180
Practice locations
Addresses where Alexandria Peterson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Barnes Hospital PlzSaint Louis, MO 63110 (314) 362‑9170
- 11133 Dunn RdSaint Louis, MO 63136 (314) 362‑9123
- 1225 Graham RdFlorissant, MO 63031 (314) 362‑9123
- 3015 N Ballas RdSaint Louis, MO 63131 (314) 454‑7704
Group practices
Medicare enrollment lists Alexandria Peterson as a member of these groups (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
- Washington University Community Specialists LLC105 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497493431 |
| 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