John Alva Simpson, MD
Allergy & Immunology Physician · Falls Church, VA
John Alva Simpson, MD is an allergy & immunology physician with a practice address in Falls Church, Virginia, and NPI 1417049347, issued on Sep 28, 2006. Check the license (Virginia 0101045826, as entered in NPPES) on the Virginia Department of Health Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Alva Simpson
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 0101045826 VA
Self-reported in NPPES; status is on the state search - Practice location
- 6305 Castle PL, Falls Church, VA 22044
- Phone
- (703) 534-5500
- Enumerated
- Sep 28, 2006
- Record last updated
- Nov 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (703) 534-4838
- Entity
- Type 1 · individual
Also registered at 6305 Castle PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kenneth Berger, M.D.Allergy & Immunology Physician1760590558
- Gary Davis, D.C.Chiropractor1811938103
- Michelle Fuselier, M.D.Family Medicine Physician1891872016
- Minoo McFarland, FNPFamily Nurse Practitioner1861515728
- Farook Shaikh, M.D.Addiction Medicine (Internal Medicine) Physician1295724888
Verify John Alva Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101045826Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Allergy & Immunology Physician providers in Virginia
There are 136 allergy & immunology physician records in Virginia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other allergy & immunology physician records in Virginia
- Parasmani Acharya, M.D.Pulaski, VA1932110343
- Veronica AlixHampton, VA1023470838
- Darshana Alle, M.D.Henrico, VA1346458106
- Oral Alpan, MDSpringfield, VA1881788610
- Donald Asbury, MDBluefield, VA1164529889
- Kestutis Aukstuolis, DOVienna, VA1831400548
- Balraj Bajaj, M.DRichmond, VA1760869754
- Troy Baker, D.O.Mc Lean, VA1023164910
- Kenneth Berger, M.D.Falls Church, VA1760590558
- Courtney Blair, M.D.Mc Lean, VA1730121344
Common questions
What is John Alva Simpson, MD's NPI number?
John Alva Simpson, MD's National Provider Identifier (NPI) is 1417049347, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Alva Simpson, MD located?
The NPPES record lists a practice address at 6305 Castle PL, Falls Church, VA, 22044. Phone: (703) 534-5500. Providers update this record themselves, so call before visiting.
How can I verify John Alva Simpson, MD's license?
NPPES lists Virginia license number 0101045826, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.