Quick answers
- Which hospitals does Michael L. Ridner work at?
- Medicare's official clinician data lists Michael L. Ridner at 3 hospitals: Athens Limestone Hospital, Huntsville Hospital and Marshall Medical Centers. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael L. Ridner see patients?
- Medicare's clinician data lists 4 practice locations, including Huntsville, AL, Fort Payne, AL and Madison, AL. Call before your visit to confirm the address.
- What is Michael L. Ridner's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Michael L. Ridner accept Medicare assignment?
- Yes. Medicare's clinician data says Michael L. Ridner 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 Michael L. Ridner?
- (256) 265-2372, as listed in official Medicare / NPI Registry data.
- What is Michael L. Ridner's NPI number?
- 1548231723. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael L. Ridner works
Medicare's Facility Affiliation Data lists Michael L. Ridner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Athens Limestone HospitalAthens, AL · Acute Care Hospital · CCN 010079
- Huntsville HospitalHuntsville, AL · Acute Care Hospital · CCN 010039
- Marshall Medical CentersBoaz, AL · Acute Care Hospital · CCN 010005
Practice locations
Addresses where Michael L. Ridner is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Sivley Rd SWHuntsville, AL 35801 (256) 265‑2372
- 200 Medical Ctr Dr SWFort Payne, AL 35968 (256) 533‑3388
- 8375 Hwy 72 WMadison, AL 35758 (256) 533‑3388
- 930 Franklin St SEHuntsville, AL 35801 (256) 539‑4080
Group practices
Medicare enrollment lists Michael L. Ridner as a member of this group (CMS data updated 2026-10-02).
- HH Heart Center, LLC93 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Alabama →
Other cardiologists in Huntsville
Clinicians with the same Medicare primary specialty in Huntsville, AL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548231723 |
| 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