Are you Dr. Simpson? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 6305 Castle Pl, Suite 2D, Falls Church, VA 22044
About Dr. Simpson
Based in Falls Church, VA, John A. Simpson, MD is listed in the NPI registry under allergy & immunology. NPI 1417049347 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (703) 534-5500
- Email not available
Practice Locations
6305 CASTLE PL SUITE 2D
Falls Church, VA 22044
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other allergists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What does Dr. Simpson specialize in?
Dr. Simpson is an allergist in Falls Church, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
Where is Dr. Simpson located?
Dr. Simpson is listed at 6305 Castle Pl Suite 2D, Falls Church, VA 22044. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Simpson's phone number?
The number on file is (703) 534-5500. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Simpson?
Dr. Simpson's National Provider Identifier is 1417049347. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. Simpson have?
Dr. Simpson has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Dr. Simpson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Simpson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.