Quick answers
- Does Jennifer K. Sehn accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer K. Sehn 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 Jennifer K. Sehn see?
- In 2024, CMS data shows 377 Original Medicare patients and 1,260 services for Jennifer K. Sehn. This counts Original Medicare only and measures volume, not quality.
- What is Jennifer K. Sehn's NPI number?
- 1720372709. 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 Jennifer K. Sehn, 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 | 377 |
|---|---|
| Services billed to Medicare | 1,260 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)487 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)248 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)186 services
- Special stained specimen slides to examine tissue, initial procedure (88342)112 services
- Pathology examination of tissue using a microscope, high complexity (88309)53 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 cholesterol73%
- Arthritis48%
- Diabetes36%
- Anxiety35%
- Depression32%
Hospitals where Jennifer K. Sehn works
Medicare's Facility Affiliation Data lists Jennifer K. Sehn 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.
- Lake Regional Health SystemOsage Beach, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260186
- SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 260105
- SSM Health St Mary's Hospital - St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260091
- SSM Health St. Mary's Hospital - Jefferson CityJefferson City, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260011
Practice locations
Addresses where Jennifer K. Sehn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Good Samaritan WayMount Vernon, IL 62864 (618) 242‑4600
- 10101 Woodfield LnSaint Louis, MO 63132 (608) 280‑4647
- 2505 Mission DrJefferson City, MO 65109 (573) 681‑3000
- 6420 Clayton RdSaint Louis, MO 63117 (314) 768‑8208
- 6420 Clayton Rd, Fl 1Saint Louis, MO 63117 (314) 768‑8491
Group practices
Medicare enrollment lists Jennifer K. Sehn as a member of this group (CMS data updated October 2, 2026).
- SSM Health Care Group940 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Mount Vernon
Clinicians with the same Medicare primary specialty in Mount Vernon, IL — not a recommendation.
Other clinicians in SSM Health Care Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720372709 |
| 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