Quick answers
- Which hospitals does Jenny L. Shaffer work at?
- Medicare's official clinician data lists Jenny L. Shaffer at 3 hospitals: Mercy Hospital Jefferson, Mercy Hospital South and Mercy Hospital St Louis. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jenny L. Shaffer see patients?
- Medicare's clinician data lists 4 practice locations, including Festus, MO, Saint Louis, MO and Maryville, IL. Call before your visit to confirm the address.
- What is Jenny L. Shaffer's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Jenny L. Shaffer accept Medicare assignment?
- Yes. Medicare's clinician data says Jenny L. Shaffer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Jenny L. Shaffer offer telehealth?
- Medicare's clinician data says Jenny L. Shaffer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jenny L. Shaffer?
- (636) 933-0303, as listed in official Medicare / NPI Registry data.
- What is Jenny L. Shaffer's NPI number?
- 1073838322. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jenny L. Shaffer works
Medicare's Facility Affiliation Data lists Jenny L. Shaffer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital JeffersonCrystal City, MO · Acute Care Hospital · CCN 260023
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · CCN 260077
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
Practice locations
Addresses where Jenny L. Shaffer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1350 US Hwy 61Festus, MO 63028 (636) 933‑0303
- 607 S New Ballas RdSaint Louis, MO 63141 (314) 251‑6844
- 615 S New Ballas RdSaint Louis, MO 63141 (314) 251‑6031
- 6836 State Route 162Maryville, IL 62062 (618) 288‑9044
Group practices
Medicare enrollment lists Jenny L. Shaffer as a member of this group (CMS data updated 2026-10-02).
- West County Radiological Group Inc102 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Columbia School Of Medicine |
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1073838322 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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