Quick answers
- Which hospitals does William Loebig work at?
- Medicare's official clinician data lists William Loebig at 2 hospitals: MercyOne North Iowa Medical Center and Veterans Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Loebig see patients?
- Medicare's clinician data lists 1 practice location in Mason City, IA. Call before your visit to confirm the address.
- What is William Loebig's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does William Loebig accept Medicare assignment?
- Yes. Medicare's clinician data says William Loebig 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 William Loebig?
- (641) 428-7000, as listed in official Medicare / NPI Registry data.
- What is William Loebig's NPI number?
- 1053440396. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Loebig works
Medicare's Facility Affiliation Data lists William Loebig at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · CCN 160064
- Veterans Memorial HospitalWaukon, IA · Critical Access Hospital · CCN 161318
Practice locations
Addresses where William Loebig is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 4th St SW, Mercyone North Iowa Anesthesia ProfMason City, IA 50401 (641) 428‑7000
Group practices
Medicare enrollment lists William Loebig as a member of this group (CMS data updated 2026-10-02).
- North Iowa Mercy Clinics302 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Iowa →
Other nurse anesthetists in Mason City
Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053440396 |
| 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