Quick answers
- Which hospitals does Walter L. Johnston work at?
- Medicare's official clinician data lists Walter L. Johnston at 2 hospitals: Mercy Hospital Southeast and Missouri Delta Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter L. Johnston see patients?
- Medicare's clinician data lists 2 practice locations, including Sikeston, MO. Call before your visit to confirm the address.
- What is Walter L. Johnston's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Walter L. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says Walter L. Johnston 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 Walter L. Johnston?
- (573) 471-1600, as listed in official Medicare / NPI Registry data.
- What is Walter L. Johnston's NPI number?
- 1215163498. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter L. Johnston works
Medicare's Facility Affiliation Data lists Walter L. Johnston at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital SoutheastCape Girardeau, MO · Acute Care Hospital · CCN 260110
- Missouri Delta Medical CenterSikeston, MO · Acute Care Hospital · CCN 260113
Practice locations
Addresses where Walter L. Johnston is enrolled with Medicare (CMS data updated 2026-10-02).
- 1008 N Main StSikeston, MO 63801 (573) 471‑1600
- 1102 Sikes AveSikeston, MO 63801
Group practices
Medicare enrollment lists Walter L. Johnston as a member of these groups (CMS data updated 2026-10-02).
- Health Facilities Rehab Services Inc154 clinicians in the group
- Missouri Delta Medical Center134 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sikeston
Clinicians with the same Medicare primary specialty in Sikeston, MO — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215163498 |
| 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