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

Deborah K Armstrong, MD

Individual provider Internal Medicine Physician · NPI 1437113255

Deborah K Armstrong, MD is a Medical Oncology in Lutherville, Maryland. Graduated from George Washington University School of Medicine in 1984, 42 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and offers telehealth. Licensed in Maryland.

Years since qualifying
42
Trained at
George Washington University School of Medicine
Licensed in
MD
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.

See every abbreviation used in this directory →

Practice location Address checks out

10755 Falls Rd
Lutherville, MD 21093-4515
Phone: (410) 583-2970
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence D36986 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence D36986 (MD)

Record details

NPI number1437113255
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2006
Last updated in NPPESFebruary 1, 2013
Mailing addressPo Box 64474, Baltimore, MD 21264-4474

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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