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

Mrs. Diane M Langlois, ARNP

Individual provider Nurse Practitioner · NPI 1235201419

Mrs. Diane M Langlois, ARNP is a Nurse Practitioner in Portsmouth, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2006.

Licensed in
NH
In the registry since
2006
Specialties on file
2
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

333 Borthwick Ave Ste 301
Portsmouth, NH 03801-7128
Phone: (603) 431-5858
Fax: (603) 431-5818
Show map & directions

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

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 027358 (NH)
Nurse Practitioner Taxonomy 363L00000X · Licence 027358 (NH)

Record details

NPI number1235201419
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedNovember 14, 2006
Last updated in NPPESJanuary 9, 2019

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