Pioneer Valley Allergy, LLC
NPI 1376435883 · Allergy & Immunology Physician · Westfield, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Pioneer Valley Allergy, LLC is a Allergy & Immunology Physician organization in Westfield, MA (NPI 1376435883).
Provider details
- NPI number
- 1376435883
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Vanessa Van Stee, Owner/Ao(413) 628-5187
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
1 yr 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
- 2025-07-18
- Last updated
- 2025-09-17
- Certified
- 2025-09-17
Frequently asked questions
- What is Pioneer Valley Allergy, LLC's NPI number?
- Pioneer Valley Allergy, LLC's National Provider Identifier (NPI) is 1376435883, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Pioneer Valley Allergy, LLC?
- Pioneer Valley Allergy, LLC is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Pioneer Valley Allergy, LLC located?
- Pioneer Valley Allergy, LLC's practice location on file with NPPES is 212 Southampton Rd Unit B, Westfield, MA 01085-1321.
- What is Pioneer Valley Allergy, LLC's phone number?
- The practice phone number listed in the NPPES registry for Pioneer Valley Allergy, LLC is (413) 628-5187.
- Does Pioneer Valley Allergy, LLC accept Medicare?
- Pioneer Valley Allergy, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Pioneer Valley Allergy, LLC?
- The authorized official listed on Pioneer Valley Allergy, LLC's NPPES record is Vanessa Van Stee, Owner/Ao. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Pioneer Valley Allergy, LLC's NPI active?
- Yes — Pioneer Valley Allergy, LLC's NPI (1376435883) is active in the NPPES registry as of the last update on 2025-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.