JOHN MACKENZIE (DO) – Emergency Medicine Physician, NPI 1427037449

Emergency Medicine Physician

JOHN MACKENZIE (DO) is a healthcare provider. based in Wilmington, Delaware. specializing in Emergency Medicine Physician. They hold the professional credentials DO. They hold a License No. C20008800 (DE). The NPI Number for JOHN MACKENZIE (DO) is 1427037449

Main info

Male

37 Years Of Experience

Accepts Medicare Assignment

Name

JOHN MACKENZIE (DO)

NPI

1427037449

Phone

(302) 224-5678

Address

PO BOX 3012

Enumeration Date

10 January 2006

Last Update Date

8 July 2007

Doctor Profile

Medical School Name

OTHER

Secondary Phone

3026296611

Graduation Year

1989 (37 years ago)

PAC ID

9234136110

Group Practice PAC ID

5799025417

Professional Enrollment ID

I20061107000401

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience54

Completeness75

Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for JOHN MACKENZIE (DO)

Wilmington Post Office, Chestnut Street, Wilmington, New Hanover County, North Carolina, 28405, United States
WILMINGTON, DE 19804
Phone: (302) 224-5678
Fax: (302) 224-2848
Type: Mailing
Beebe Medical Center, 424, Savannah Road, Highland Acres, Lewes, Sussex County, Delaware, 19958, United States
LEWES, DE 19958
Phone: (302) 645-3296
Fax: (302) 645-3862
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 19804)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 5799025417View full group profile

Name	Specialty	State
FREDERICK V BAUER (MD)	-	MD
JOHN HAMMOCK	-	GA
TAMMY L ROTONDO (APNP)	-	MD
SEAN LAWRENCE FINNERTY (DO)	-	NJ

Reviews

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Frequently asked questions

What federal number belongs to JOHN MACKENZIE (DO)?

The federal identifier for JOHN MACKENZIE (DO) is NPI 1427037449.

Is JOHN MACKENZIE (DO)'s NPI currently valid?

The extract we use shows JOHN MACKENZIE (DO) as active.

What does JOHN MACKENZIE (DO) treat or focus on?

Patients typically see JOHN MACKENZIE (DO) under the specialty Emergency Medicine Physician. Clinical services aligned with this taxonomy classification.

Where is JOHN MACKENZIE (DO)'s primary listing?

We display Wilmington, Delaware because that is what the record indicates for JOHN MACKENZIE (DO).

Is this NPI for an individual or an organization?

This listing corresponds to an Individual Provider.

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