Quick answers
- Which hospitals does Ronnie Ortiz work at?
- Medicare's official clinician data lists Ronnie Ortiz at 5 hospitals: Aspirus Medford Hospital & Clinics, Inc, Aspirus Rhinelander Hospital, Aspirus Riverview Hospital & Clinics Inc, Aspirus Stevens Point Hospital & Clinics, Inc. and Aspirus Wausau Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ronnie Ortiz see patients?
- Medicare's clinician data lists 12 practice locations, including Medford, WI, Laurium, MI and Rhinelander, WI. Call before your visit to confirm the address.
- What is Ronnie Ortiz's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Internal Medicine.
- Does Ronnie Ortiz accept Medicare assignment?
- Yes. Medicare's clinician data says Ronnie Ortiz 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 Ronnie Ortiz?
- (715) 748-8100, as listed in official Medicare / NPI Registry data.
- What is Ronnie Ortiz's NPI number?
- 1245474410. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ronnie Ortiz works
Medicare's Facility Affiliation Data lists Ronnie Ortiz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Medford Hospital & Clinics, IncMedford, WI · Critical Access Hospital · CCN 521324
- Aspirus Rhinelander HospitalRhinelander, WI · Acute Care Hospital · CCN 520019
- Aspirus Riverview Hospital & Clinics IncWisconsin Rapids, WI · Acute Care Hospital · CCN 520033
- Aspirus Stevens Point Hospital & Clinics, Inc.Stevens Point, WI · Acute Care Hospital · CCN 520002
- Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · CCN 520030
Practice locations
Addresses where Ronnie Ortiz is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 12; the Medicare profile lists all.
- 135 S Gibson StMedford, WI 54451 (715) 748‑8100
- 143 S Gibson StMedford, WI 54451 (715) 748‑8100
- 205 Osceola StLaurium, MI 49913 (906) 337‑3100
- 2225 N Shore DrRhinelander, WI 54501 (715) 361‑5482
- 2275 N Shore DrRhinelander, WI 54501
Group practices
Medicare enrollment lists Ronnie Ortiz as a member of these groups (CMS data updated 2026-10-02).
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
- Aspirus Medical Group, Inc.268 clinicians in the group
- Aspirus Medford Hospital and Clinics Inc119 clinicians in the group
- Aspirus Keweenaw115 clinicians in the group
Specialties
- Cardiac Electrophysiologyprimary
- Internal Medicinealso
Other cardiac electrophysiologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245474410 |
| 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