Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Geraldine Callahan, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1669865473

Geraldine Callahan, NP is a Nurse Practitioner in Nashua, New Hampshire. Qualified in 1991, 35 years ago. Practices with Lamora Psychological Associates, PA, a 10-clinician group and offers telehealth. Licensed in Massachusetts and New Hampshire.

Years since qualifying
35
Licensed in
MA, NH
In the registry since
2015
Specialties on file
4
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

39 Simon St Ste 5
Nashua, NH 03060-3045
Phone: (603) 889-8648
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 204352 (MA)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence 204352 (MA)
Nurse Practitioner Taxonomy 363L00000X · Licence 065522-23 (NH)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence 065522-23 (NH)

Record details

NPI number1669865473
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedMarch 18, 2015
Last updated in NPPESMay 15, 2026
Certification dateMay 15, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Lamora Psychological Associates, P.A. — 10 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

Other providers in Nashua