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

Individual provider Allergy & Immunology Physician · NPI 1417049347

Dr. John Alva Simpson, MD is an Allergy & Immunology Physician in Falls Church, Virginia. Licensed in Virginia. Registered with an NPI since 2006.

Licensed in
VA
In the registry since
2006
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

6305 Castle Pl Ste 2D
Falls Church, VA 22044-1905
Phone: (703) 534-5500
Fax: (703) 534-4838
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 0101045826 (VA)

Record details

NPI number1417049347
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESNovember 16, 2015

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