NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. – Allergy & Immunology Physician, NPI 1821238775

Allergy & Immunology Physician

NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. is a healthcare provider. based in Alexandria, Virginia. specializing in Allergy & Immunology Physician. The NPI Number for NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. is 1821238775

Main info

Organization

Name

NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C.

NPI

1821238775

Phone

(703) 778-8201

Address

6355 WALKER LN

Authorized Official

JOHN ALVA SIMPSON PRESIDENT M.D.

Enumeration Date

4 March 2009

Last Update Date

4 March 2009

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience39

Completeness75

Years active:17State licenses:0Digital endpointsOther names

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Provider Addresses for NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C.

Inova Healthplex, 6355, Walker Lane, Windsor Estates, Kingstowne, Alexandria, Fairfax, Virginia, 22306, United States
SUITE 305
ALEXANDRIA, VA 223103245
Phone: (703) 778-8201
Fax: (703) 778-8202
Type: Location
Castle Place, Linen Quarter, Markets, Belfast, County Antrim, Northern Ireland, BT1 1PT, United Kingdom
SUITE 2D
FALLS CHURCH, VA 220441905
Phone: (703) 778-8201
Fax: (703) 778-8202
Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 22310)

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Reviews

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Frequently asked questions

How is NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. identified in CMS data?

CMS-hosted NPPES data lists NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. with NPI 1821238775.

Is NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. listed as active for patients and plans?

The listing shows NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. as active in the NPI system.

What healthcare role does NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. hold?

Scheduling teams often label NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. under Allergy & Immunology Physician. Clinical services aligned with this taxonomy classification.

Where should I expect NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. on a map?

Expect Alexandria, Virginia as a primary anchor for NORTHERN VIRGINIA ALLERGY AND ASTHMA ASSOCIATES, P.C. unless the record lists multiple sites.

Is specialty guaranteed by NPI alone?

Taxonomy selections describe intent; scope of practice still follows state law.