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

Marie Kathryn Johnston

Individual provider Anesthesiology Physician · NPI 1912587114

Marie Kathryn Johnston is an Anesthesiology in Washington, District of Columbia. Qualified in 2021, 5 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment. Licensed in District of Columbia.

Years since qualifying
5
Licensed in
DC
In the registry since
2021
Specialties on file
2
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Practice location Address checks out

3800 Reservoir Rd NW Dept OF
Washington, DC 20007-2113
Phone: (202) 444-8556
Fax: (202) 444-8854
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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 D0210012650 (DC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1912587114
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedApril 12, 2021
Last updated in NPPESJuly 1, 2025
Certification dateJuly 1, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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