Quick answers
- Does Christie Keen accept Medicare assignment?
- Yes. Medicare's clinician data says Christie Keen 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 Christie Keen see?
- In 2024, CMS data shows 148 Original Medicare patients and 423 services for Christie Keen. This counts Original Medicare only and measures volume, not quality.
- What is Christie Keen's NPI number?
- 1023577442. 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 Christie Keen, 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 | 148 |
|---|---|
| Services billed to Medicare | 423 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 62 |
Most frequent services
- Emergency department visit with moderate level of medical decision making (99284)66 services
- Emergency department visit with low level of medical decision making (99283)27 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)17 services
- Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)13 services
- Emergency department visit with high level of medical decision making (99285)12 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 pressure66%
- High cholesterol55%
- Arthritis47%
- Anxiety34%
- Depression32%
- Diabetes31%
Hospitals where Christie Keen works
Medicare's Facility Affiliation Data lists Christie Keen 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.
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
- OSF Saint Anthony's Health CenterAlton, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 140052
Practice locations
Addresses where Christie Keen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Memorial DrAlton, IL 62002 (618) 463‑7311
- 1 Saint Anthonys WayAlton, IL 62002 (618) 465‑2571
- 1512 N Green Mount RdO Fallon, IL 62269 (618) 624‑3750
- 801 W Temple AveEffingham, IL 62401 (217) 347‑1690
- 9556 Manchester RdSaint Louis, MO 63119 (314) 961‑2255
Group practices
Medicare enrollment lists Christie Keen as a member of these groups (CMS data updated October 2, 2026).
- Total Access Urgent Care PC126 clinicians in the group
- Southeastern Emergency Physicians of Memphis LLC94 clinicians in the group
- Vituity - Illinois Auc LLP36 clinicians in the group
- Alton-Griffin Emergency Group PC18 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Alton
Clinicians with the same Medicare primary specialty in Alton, IL — not a recommendation.
Other clinicians in Total Access Urgent Care PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023577442 |
| 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