Quick answers
- Which hospitals does Marcus R. Hennon work at?
- Medicare's official clinician data lists Marcus R. Hennon at 5 hospitals: Mercy Hospital - Cassville, Mercy Hospital Lebanon, Mercy Hospital Springfield, Mercy St Francis Hospital and Texas County Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marcus R. Hennon see patients?
- Medicare's clinician data lists 3 practice locations, including Lebanon, MO, Mountain View, MO and Springfield, MO. Call before your visit to confirm the address.
- What is Marcus R. Hennon's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Marcus R. Hennon accept Medicare assignment?
- Yes. Medicare's clinician data says Marcus R. Hennon 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.
- What is the phone number for Marcus R. Hennon?
- (417) 553-6059, as listed in official Medicare / NPI Registry data.
- What is Marcus R. Hennon's NPI number?
- 1568811321. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marcus R. Hennon works
Medicare's Facility Affiliation Data lists Marcus R. Hennon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital - CassvilleCassville, MO · Critical Access Hospital · CCN 261317
- Mercy Hospital LebanonLebanon, MO · Acute Care Hospital · CCN 260059
- Mercy Hospital SpringfieldSpringfield, MO · Acute Care Hospital · CCN 260065
- Mercy St Francis HospitalMountain View, MO · Critical Access Hospital · CCN 261335
- Texas County Memorial HospitalHouston, MO · Acute Care Hospital · CCN 260024
Practice locations
Addresses where Marcus R. Hennon is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Hospital DrLebanon, MO 65536 (417) 553‑6059
- 100 W US Hwy 60Mountain View, MO 65548 (417) 934‑7000
- 1235 E Cherokee StSpringfield, MO 65804 (417) 820‑2600
Group practices
Medicare enrollment lists Marcus R. Hennon as a member of these groups (CMS data updated 2026-10-02).
- Mercy Clinic Springfield Communities1,120 clinicians in the group
- Mercy St Francis Hospital9 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Lebanon
Clinicians with the same Medicare primary specialty in Lebanon, MO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568811321 |
| 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