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Harald Mackenzie, M.D.
NPI 1497922439 · Nephrology Physician · Concord, MA
Harald Mackenzie, M.D. is a Nephrology Physician provider in Concord, MA (NPI 1497922439).
Provider details
- NPI number
- 1497922439
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 77111 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
422b Monument St
Concord, MA 01742-1810
Phone: (978) 729-4331
Street-level locationGet directions
Mailing address
Po Box 607
Concord, MA 01742-0607
Registry dates
- Enumerated
- 2008-05-09
- Last updated
- 2008-05-09
Frequently asked questions
- What is Harald Mackenzie's NPI number?
- Harald Mackenzie's National Provider Identifier (NPI) is 1497922439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harald Mackenzie's specialty?
- Harald Mackenzie is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Harald Mackenzie located?
- Harald Mackenzie's practice location on file with NPPES is 422b Monument St, Concord, MA 01742-1810.
- What is Harald Mackenzie's phone number?
- The practice phone number listed in the NPPES registry for Harald Mackenzie is (978) 729-4331.
- Is Harald Mackenzie's NPI active?
- Yes — Harald Mackenzie's NPI (1497922439) is active in the NPPES registry as of the last update on 2008-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.