Northern Virginia Allergy and Asthma Associates, P.C.
NPI 1821238775 · Allergy & Immunology Physician · Alexandria, VA
Northern Virginia Allergy and Asthma Associates, P.C. is a Allergy & Immunology Physician organization in Alexandria, VA (NPI 1821238775).
Provider details
- NPI number
- 1821238775
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Northern Virginia Allergy and Asthma Associates, P.C.
- Organization subpart
- Yes
- Authorized official
- John Simpson, President(703) 534-5500
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-03-04
- Last updated
- 2009-03-04
Frequently asked questions
- What is Northern Virginia Allergy and Asthma Associates, P.C.'s NPI number?
- Northern Virginia Allergy and Asthma Associates, P.C.'s National Provider Identifier (NPI) is 1821238775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northern Virginia Allergy and Asthma Associates, P.C.?
- Northern Virginia Allergy and Asthma Associates, P.C. is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Northern Virginia Allergy and Asthma Associates, P.C. located?
- Northern Virginia Allergy and Asthma Associates, P.C.'s practice location on file with NPPES is 6355 Walker Ln, Alexandria, VA 22310-3245.
- What is Northern Virginia Allergy and Asthma Associates, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Northern Virginia Allergy and Asthma Associates, P.C. is (703) 778-8201.
- Who is the authorized official for Northern Virginia Allergy and Asthma Associates, P.C.?
- The authorized official listed on Northern Virginia Allergy and Asthma Associates, P.C.'s NPPES record is John Simpson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northern Virginia Allergy and Asthma Associates, P.C.'s NPI active?
- Yes — Northern Virginia Allergy and Asthma Associates, P.C.'s NPI (1821238775) is active in the NPPES registry as of the last update on 2009-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.