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WILLIAM GILES STUART MACKENZIE M.D.
NPI 1952744898
Orthopaedic Surgery - Pediatric Orthopaedic Surgery in Wilmington, DE

Active since April 10, 2013PECOS EnrolledAccepts Medicare Assignment
1600 ROCKLAND RD, WILMINGTON, DE 19803(302) 651-4200(302) 651-4945 Get Directions Write a Review

NPPES record last updated: September 4, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Giles Stuart Mackenzie M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM GILES STUART MACKENZIE M.D. (NPI 1952744898) is an individual pediatric orthopaedic surgery provider in Wilmington, Delaware, licensed in Delaware (C1-0013223) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1952744898
Entity TypeIndividualMale
Primary Taxonomy207XP3100X
Provider Legal NameWILLIAM GILES STUART MACKENZIECredential: M.D.
Location Address1600 ROCKLAND RDWilmington, DE 19803
Mailing AddressPo Box 191Rockland, DE 19732-0191 · (302) 651-4200 · Fax (302) 651-4945
Phone(302) 651-4200
Fax(302) 651-4945
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateApril 10, 2013
Last NPPES UpdateSeptember 4, 2019
✔ NPI 1952744898 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Pediatric Orthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XP3100X
License✔ Licensed in DE · C1-0013223
Definition
An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1600 ROCKLAND RD, Wilmington, DE 19803
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Secondary Practice Location 1

Location 1622 W 168th St Ph 11New York, NY 10032-3720 · Phone (212) 305-5974 · Fax (212) 305-6193

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Giles Stuart Mackenzie M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4587995956
PECOS Enrollment IDI20191016001337, I20250108002802
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOANNA COSTA MD
Pediatrics (Neonatal-Perinatal Medicine)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-5795
LAURA MARIE KISZKIEL MD
Obstetrics & Gynecology
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
ALLYSON JANE MENARD SLP
Speech-Language Pathologist
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
SALWA ELIZABETH SULIEMAN D.O.
Pediatrics (Pediatric Infectious Diseases)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
DR. WAYNE S MOORE II PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-5700
DR. LAUREN ASHLEY MAY M.D.
Radiology (Pediatric Radiology)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
DR. MARY IAMPIETRO PH.D.
Psychologist (Clinical Child & Adolescent)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
KATHERINE HARRIGAN
Nurse Practitioner
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mackenzie's NPI number?

The NPI number for William Mackenzie is 1952744898. It was assigned to this individual provider in the NPPES registry on April 10, 2013.

Where is William Mackenzie located?

William Mackenzie practices at 1600 Rockland Rd, Wilmington, DE 19803. The listed phone number is (302) 651-4200.

What is William Mackenzie's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Pediatric Orthopaedic Surgery, with taxonomy code 207XP3100X.

Is William Mackenzie enrolled in Medicare?

Yes. William Mackenzie is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Mackenzie accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 4 other insurers list William Mackenzie as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Mackenzie was last updated on September 4, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.