Quick answers
- Does Jeffery C. Diehl accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffery C. Diehl 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.
- What is Jeffery C. Diehl's NPI number?
- 1871659193. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffery C. Diehl works
Medicare's Facility Affiliation Data lists Jeffery C. Diehl 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 - CassvilleCassville, MO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 261317
- Mercy Hospital AuroraAurora, MO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 261316
- Mercy Hospital SpringfieldSpringfield, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260065
Practice locations
Addresses where Jeffery C. Diehl is enrolled with Medicare (CMS data updated October 2, 2026).
- 94 Main StCassville, MO 65625 (417) 847‑6000
- 94 S Main StCassville, MO 65625
Group practices
Medicare enrollment lists Jeffery C. Diehl as a member of this group (CMS data updated October 2, 2026).
- Mercy Hospital Cassville11 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Other clinicians in Mercy Hospital Cassville
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871659193 |
| 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
- 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