Quick answers
- Which hospitals does Lei Guan work at?
- Medicare's official clinician data lists Lei Guan at 1 hospital: MercyOne Centerville Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lei Guan see patients?
- Medicare's clinician data lists 1 practice location in Dexter, MO. Call before your visit to confirm the address.
- What is Lei Guan's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Lei Guan accept Medicare assignment?
- Yes. Medicare's clinician data says Lei Guan 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 Lei Guan?
- (573) 614-1900, as listed in official Medicare / NPI Registry data.
- What is Lei Guan's NPI number?
- 1235191321. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lei Guan works
Medicare's Facility Affiliation Data lists Lei Guan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MercyOne Centerville Medical CenterCenterville, IA · Critical Access Hospital · CCN 161377
Practice locations
Addresses where Lei Guan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 N One Mile Rd, Southeast Health Center of StoddardDexter, MO 63841 (573) 614‑1900
Group practices
Medicare enrollment lists Lei Guan as a member of this group (CMS data updated 2026-10-02).
- Southeast Health Center of Stoddard County LLC43 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Dexter
Clinicians with the same Medicare primary specialty in Dexter, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235191321 |
| 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