Individual provider · Type 1 NPI

Geraldine Callahan, NP

Nurse Practitioner · Nashua, NH

NPI number 1669865473 Active

Practice location

39 Simon St Ste 5
Nashua, NH 03060-3045

Specialties and licenses

TaxonomyCodeLicense
Psychiatric/Mental Health Nurse Practitioner 363LP0808X204352 (MA)
Nurse Practitioner 363L00000X065522-23 (NH)
Nurse Practitioner Primary 363L00000X204352 (MA)
Psychiatric/Mental Health Nurse Practitioner 363LP0808X065522-23 (NH)

Nurse Practitioner: (1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance wit…

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About NPI 1669865473

Geraldine Callahan, NP's National Provider Identifier is 1669865473, issued on Mar 18, 2015. The primary taxonomy on file is Nurse Practitioner (363L00000X), and the practice location is in Nashua, NH. The record was last updated on May 15, 2026.