Quick answers
- Which hospitals does Guy M. Grabau work at?
- Medicare's official clinician data lists Guy M. Grabau at 1 hospital: Freeman Health System - Freeman West. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guy M. Grabau see patients?
- Medicare's clinician data lists 2 practice locations, including Joplin, MO and Lamar, MO. Call before your visit to confirm the address.
- What is Guy M. Grabau's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists).
- Does Guy M. Grabau accept Medicare assignment?
- Yes. Medicare's clinician data says Guy M. Grabau 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 Guy M. Grabau?
- (417) 682-3300, as listed in official Medicare / NPI Registry data.
- What is Guy M. Grabau's NPI number?
- 1649275876. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guy M. Grabau works
Medicare's Facility Affiliation Data lists Guy M. Grabau at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Freeman Health System - Freeman WestJoplin, MO · Acute Care Hospital · CCN 260137
Practice locations
Addresses where Guy M. Grabau is enrolled with Medicare (CMS data updated 2026-10-02).
- 1102 W 32 StJoplin, MO 64804
- 307 W 11th St, Freeman Lamar Family CareLamar, MO 64759 (417) 682‑3300
Group practices
Medicare enrollment lists Guy M. Grabau as a member of this group (CMS data updated 2026-10-02).
- Freeman-Oak Hill Health System394 clinicians in the group
Specialties
Other pulmonologists in Joplin
Clinicians with the same Medicare primary specialty in Joplin, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649275876 |
| 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