Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Thomas D Mackenzie, MD

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1821007741

Thomas D Mackenzie, MD is an Internal Medicine in Denver, Colorado. Graduated from Washington University School of Medicine in 1989, 37 years ago. Practices with Denver Health and Hospital Authority, a 829-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
37
Trained at
Washington University School of Medicine
Licensed in
CO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

777 Bannock St Mc 7782
Denver, CO 80204-4507
Phone: (303) 436-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 30983 (CO)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence 30983 (CO)

Record details

NPI number1821007741
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 7, 2006
Last updated in NPPESMay 22, 2024
Certification dateMay 22, 2024
Mailing address777 Bannock St, Mc 7782, Denver, CO 80204-4507

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Denver Health And Hospital Authority — 829 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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