Quick answers
- Which hospitals does Mark McKenzie work at?
- Medicare's official clinician data lists Mark McKenzie at 1 hospital: AdventHealth Orlando. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark McKenzie see patients?
- Medicare's clinician data lists 3 practice locations, including Kissimmee, FL, Altamonte Springs, FL and Saint Cloud, FL. Call before your visit to confirm the address.
- What is Mark McKenzie's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark McKenzie accept Medicare assignment?
- Yes. Medicare's clinician data says Mark McKenzie 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 Mark McKenzie?
- (407) 847-2796, as listed in official Medicare / NPI Registry data.
- What is Mark McKenzie's NPI number?
- 1427076447. 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 McKenzie works
Medicare's Facility Affiliation Data lists Mark McKenzie 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
Practice locations
Addresses where Mark McKenzie is enrolled with Medicare (CMS data updated 2026-10-02).
- 3293 Greenwald Way N, Adventhealth Centra Care Hunters CreekKissimmee, FL 34741 (407) 847‑2796
- 440 W Hwy 436, Adventhealth Centra Care AltamonteAltamonte Springs, FL 32714 (407) 788‑2000
- 4660 13th StSaint Cloud, FL 34769 (321) 805‑4650
Group practices
Medicare enrollment lists Mark McKenzie as a member of this group (CMS data updated 2026-10-02).
- Adventist Health System Sunbelt, Inc.213 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Kissimmee
Clinicians with the same Medicare primary specialty in Kissimmee, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427076447 |
| 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