Quick answers
- Which hospitals does Mario Garretto work at?
- Medicare's official clinician data lists Mario Garretto at 1 hospital: Froedtert South Inc.. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mario Garretto see patients?
- Medicare's clinician data lists 2 practice locations, including Kenosha, WI and Pleasant Prairie, WI. Call before your visit to confirm the address.
- What is Mario Garretto's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Mario Garretto accept Medicare assignment?
- Yes. Medicare's clinician data says Mario Garretto 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 Mario Garretto?
- (262) 653-5300, as listed in official Medicare / NPI Registry data.
- What is Mario Garretto's NPI number?
- 1497701809. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mario Garretto works
Medicare's Facility Affiliation Data lists Mario Garretto at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Froedtert South Inc.Kenosha, WI · Acute Care Hospital · CCN 520021
Practice locations
Addresses where Mario Garretto is enrolled with Medicare (CMS data updated 2026-10-02).
- 6308 8th AveKenosha, WI 53143 (262) 653‑5300
- 9555 76th StPleasant Prairie, WI 53158 (262) 577‑8300
Group practices
Medicare enrollment lists Mario Garretto as a member of this group (CMS data updated 2026-10-02).
- Froedtert South Inc161 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Kenosha
Clinicians with the same Medicare primary specialty in Kenosha, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497701809 |
| 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