Quick answers
- Which hospitals does Dennis Armstrong work at?
- Medicare's official clinician data lists Dennis Armstrong at 3 hospitals: Mercy Hospital Joplin, North Arkansas Regional Medical Center and University of Arkansas Medical Sciences. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dennis Armstrong see patients?
- Medicare's clinician data lists 3 practice locations, including Joplin, MO, Little Rock, AR and Harrison, AR. Call before your visit to confirm the address.
- What is Dennis Armstrong's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Dennis Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis Armstrong 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 Dennis Armstrong?
- (417) 556-3729, as listed in official Medicare / NPI Registry data.
- What is Dennis Armstrong's NPI number?
- 1760704027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dennis Armstrong works
Medicare's Facility Affiliation Data lists Dennis Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital JoplinJoplin, MO · Acute Care Hospital · CCN 260001
- North Arkansas Regional Medical CenterHarrison, AR · Acute Care Hospital · CCN 040017
- University of Arkansas Medical SciencesLittle Rock, AR · Acute Care Hospital · CCN 040016
Practice locations
Addresses where Dennis Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Mercy WayJoplin, MO 64804 (417) 556‑3729
- 4301 W Markam StLittle Rock, AR 72205 (501) 686‑8000
- 620 N Main St, Second FloorHarrison, AR 72601 (870) 414‑4000
Group practices
Medicare enrollment lists Dennis Armstrong as a member of these groups (CMS data updated 2026-10-02).
- University of Arkansas for Medical Sciences1,175 clinicians in the group
- Northstar Anesthesia of Missouri LLC89 clinicians in the group
- North Arkansas Regional Medical Center82 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Missouri →
Other nurse anesthetists in Joplin
Clinicians with the same Medicare primary specialty in Joplin, MO — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760704027 |
| 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