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

Alexander S. Isaac, MD

Individual provider Neurology Physician · NPI 1861428054

Alexander S. Isaac, MD is a Neurology Physician in Washington, District of Columbia. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
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

209 Pennsylvania Ave SE 229I
Washington, DC 20003-1107
Phone: (703) 698-0716
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 0101234806 (VA)
Neurology Physician Taxonomy 2084N0400X · Licence 0101234806 (VA)

Record details

NPI number1861428054
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 23, 2006
Last updated in NPPESMarch 7, 2013

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