Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Marleen McKenzie, MD

Individual provider Anesthesiology Physician · NPI 1831221621

Marleen McKenzie, MD practises Anesthesiology in Columbia, Maryland. Qualified in 1995, 31 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
31
Licensed in
DC, MD
In the registry since
2007
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

5228 Lightfoot Path
Columbia, MD 21044-1102 Not confirmed with CMS for 19 years — call before visiting
Phone: (410) 740-8133
Fax: (410) 740-0281
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence D0055823 (MD)
Anesthesiology Physician Taxonomy 207L00000X · Licence MD 31551 (DC)

Record details

NPI number1831221621
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 9, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients75
Services billed 76 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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