Quick answers
- Does Marcee L. Stegemeier accept Medicare assignment?
- Yes. Medicare's clinician data says Marcee L. Stegemeier 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 Marcee L. Stegemeier see?
- In 2024, CMS data shows 181 Original Medicare patients and 567 services for Marcee L. Stegemeier. This counts Original Medicare only and measures volume, not quality.
- What is Marcee L. Stegemeier's NPI number?
- 1639316946. 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 Marcee L. Stegemeier, 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 | 181 |
|---|---|
| Services billed to Medicare | 567 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)249 services
- Test to measure rate of airflow (94375)192 services
- Test to measure largest amount of air breathed in an out (94200)29 services
- Test to examine how well the lungs exchange gases (94729)29 services
- Test to determine lung volumes using sensors (94726)23 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%
- Arthritis60%
- COPD56%
- Diabetes47%
- Ischemic heart disease43%
Hospitals where Marcee L. Stegemeier works
Medicare's Facility Affiliation Data lists Marcee L. Stegemeier 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 PerryPerryville, MO · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 261311
Practice locations
Addresses where Marcee L. Stegemeier is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 11133 Dunn Rd, Suite 2335Saint Louis, MO 63136 (314) 653‑5007
- 12 N Kingshighway, 100 Wound CarePerryville, MO 63775 (573) 768‑3399
- 1508 Edgemont Blvd, Primary Care/convenient CarePerryville, MO 63775 (573) 768‑3220
- 206 Hospital LnPerryville, MO 63775
- 210 Hospital LnPerryville, MO 63775
Group practices
Medicare enrollment lists Marcee L. Stegemeier as a member of these groups (CMS data updated October 2, 2026).
- Mercy Hospital Perry117 clinicians in the group
- Pulmonary Consultants Inc10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Mercy Hospital Perry
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639316946 |
| 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