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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALLISON CASTONGUAY APRN
NPI 1184933657
Nurse Practitioner - Family in Durham, NH

Active since October 01, 2010
2 SHEARWATER ST, DURHAM, NH 03824(617) 650-3397 Get Directions Write a Review

NPPES record last updated: September 19, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Sep 19, 2026, Sep 4, 2022, Dec 23, 2021 (3 updates tracked since 2021).

About Allison Castonguay Aprn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALLISON CASTONGUAY APRN (NPI 1184933657) is an individual family provider in Durham, New Hampshire, licensed in New Hampshire (059270-23) and active in the NPI registry since October 2010. She maintains 4 additional practice locations.

NPPES Registry Identity

NPI1184933657
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameALLISON CASTONGUAYCredential: APRN
Location Address2 SHEARWATER STDurham, NH 03824-3335
Mailing Address2 Shearwater StDurham, NH 03824-3335 · (833) 707-4636
Phone(617) 650-3397
Sole ProprietorYes
Enumeration DateOctober 1, 2010
Last NPPES UpdateSeptember 19, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 19, 2026
✔ NPI 1184933657 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses✔ Licensed in NH · 059270-23✔ Licensed in MA · RN28049
2 SHEARWATER ST, Durham, NH 03824
Open in Google Maps ↗

Secondary Practice Locations 4

Location 150 Columbia St Ste 11Bangor, ME 04401-6331 · Phone (407) 850-8199
Location 240 Summer StBangor, ME 04401-7144 · Phone (407) 850-8199
Location 326 Main StDexter, ME 04930-1375 · Phone (407) 850-8199
Location 424 Main StDexter, ME 04930-1375 · Phone (407) 850-8199

Other Identifiers 1

Medicaid1184933657ME

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allison Castonguay's NPI number?

The NPI number for Allison Castonguay is 1184933657. It was assigned to this individual provider in the NPPES registry on October 1, 2010.

Where is Allison Castonguay located?

Allison Castonguay practices at 2 Shearwater St, Durham, NH 03824. The listed phone number is (617) 650-3397.

What is Allison Castonguay's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

What insurance does Allison Castonguay accept?

Health plans from Anthem Blue Cross and Blue Sheld and Anthem Blue Cross and Blue Shield list Allison Castonguay as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allison Castonguay was last updated on September 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.