DR. HARALD SINCLAIR MACKENZIE M.D.
NPI 1497922439
Internal Medicine - Nephrology in Concord, MA

Q: What is Harald Mackenzie's NPI number?

The NPI number for Harald Mackenzie is 1497922439. It was assigned to this individual provider in the NPPES registry on May 9, 2008.

Q: What is Harald Mackenzie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Harald Mackenzie was last updated on May 9, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since May 09, 2008

422B MONUMENT ST, CONCORD, MA 01742(978) 729-4331 Get Directions Write a Review

NPPES record last updated: May 9, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Harald Sinclair Mackenzie M.d. NPPES

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

DR. HARALD SINCLAIR MACKENZIE M.D. (NPI 1497922439) is an individual nephrology provider in Concord, Massachusetts, licensed in Massachusetts (77111) and active in the NPI registry since May 2008.

NPPES Registry Identity

NPI1497922439

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. HARALD SINCLAIR MACKENZIECredential: M.D.

Location Address422B MONUMENT STConcord, MA 01742-1810

Mailing AddressPo Box 607Concord, MA 01742-0607 · (978) 729-4331

Phone(978) 729-4331

Sole ProprietorYes

Enumeration DateMay 9, 2008

✔ NPI 1497922439 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MA · 77111

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

422B MONUMENT ST, Concord, MA 01742

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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 Harald Mackenzie's NPI number?

The NPI number for Harald Mackenzie is 1497922439. It was assigned to this individual provider in the NPPES registry on May 9, 2008.

Where is Harald Mackenzie located?

Harald Mackenzie practices at 422B Monument St, Concord, MA 01742. The listed phone number is (978) 729-4331.

What is Harald Mackenzie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Harald Mackenzie was last updated on May 9, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.