Quick answers
- Which hospitals does William Mackenzie work at?
- Medicare's official clinician data lists William Mackenzie at 1 hospital: Nemours Children's Hospital, Delaware. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Mackenzie see patients?
- Medicare's clinician data lists 2 practice locations, including Wilmington, DE and Orlando, FL. Call before your visit to confirm the address.
- What is William Mackenzie's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does William Mackenzie accept Medicare assignment?
- Yes. Medicare's clinician data says William Mackenzie 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 William Mackenzie?
- (302) 651-4200, as listed in official Medicare / NPI Registry data.
- What is William Mackenzie's NPI number?
- 1952744898. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Mackenzie works
Medicare's Facility Affiliation Data lists William Mackenzie at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Nemours Children's Hospital, DelawareWilmington, DE · Children's Hospital · CCN 083300
Practice locations
Addresses where William Mackenzie is enrolled with Medicare (CMS data updated 2026-10-02).
- 1600 Rockland RdWilmington, DE 19803 (302) 651‑4200
- 6535 Nemours PkwyOrlando, FL 32827 (407) 567‑4000
Group practices
Medicare enrollment lists William Mackenzie as a member of this group (CMS data updated 2026-10-02).
- The Nemours Foundation249 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Wilmington
Clinicians with the same Medicare primary specialty in Wilmington, DE — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952744898 |
| 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