Quick answers
- Which hospitals does Mark A. Steiner work at?
- Medicare's official clinician data lists Mark A. Steiner at 5 hospitals: AdventHealth Orlando, HCA Florida Osceola Hospital, Orlando Health, Orlando Health South Lake Hospital and Ucf Lake Nona Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark A. Steiner see patients?
- Medicare's clinician data lists 1 practice location in Ocala, FL. Call before your visit to confirm the address.
- What is Mark A. Steiner's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Internal Medicine.
- Does Mark A. Steiner accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Steiner 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.
- Does Mark A. Steiner offer telehealth?
- Medicare's clinician data says Mark A. Steiner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark A. Steiner?
- (352) 622-4251, as listed in official Medicare / NPI Registry data.
- What is Mark A. Steiner's NPI number?
- 1023012093. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark A. Steiner works
Medicare's Facility Affiliation Data lists Mark A. Steiner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth OrlandoOrlando, FL · Acute Care Hospital · CCN 100007
- HCA Florida Osceola HospitalKissimmee, FL · Acute Care Hospital · CCN 100110
- Orlando HealthOrlando, FL · Acute Care Hospital · CCN 100006
- Orlando Health South Lake HospitalClermont, FL · Acute Care Hospital · CCN 100051
- Ucf Lake Nona HospitalOrlando, FL · Acute Care Hospital · CCN 100350
Practice locations
Addresses where Mark A. Steiner is enrolled with Medicare (CMS data updated 2026-10-02).
- 2111 SW 20th PlOcala, FL 34471 (352) 622‑4251
Group practices
Medicare enrollment lists Mark A. Steiner as a member of this group (CMS data updated 2026-10-02).
- Cardiovascular Institute of Central Florida LLC69 clinicians in the group
Specialties
Other interventional cardiologists in Ocala
Clinicians with the same Medicare primary specialty in Ocala, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023012093 |
| 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