Quick answers
- Which hospitals does Jack Mizelle work at?
- Medicare's official clinician data lists Jack Mizelle at 2 hospitals: Loring Hospital and MercyOne North Iowa Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack Mizelle see patients?
- Medicare's clinician data lists 5 practice locations, including Mason City, IA, Nashville, TN and Fort Worth, TX. Call before your visit to confirm the address.
- What is Jack Mizelle's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jack Mizelle accept Medicare assignment?
- Medicare's clinician data says Jack Mizelle may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Jack Mizelle's NPI number?
- 1629710157. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack Mizelle works
Medicare's Facility Affiliation Data lists Jack Mizelle at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loring HospitalSac City, IA · Critical Access Hospital · CCN 161370
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · CCN 160064
Practice locations
Addresses where Jack Mizelle is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 4th St SWMason City, IA 50401
- 1222 Demonbreun St, Suite 1601Nashville, TN 37203
- 4100 International PlzFort Worth, TX 76109
- 600 1st St NWMason City, IA 50401
- PO Box, Suite 74157Los Angeles, CA 90004
Specialties
- Family Practiceprimary
Other family doctors in Mason City
Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1629710157 |
| 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