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

MS. Diana L Dumais

Individual provider Case Manager/Care Coordinator · NPI 1780857714

MS. Diana L Dumais is a Case Manager/Care Coordinator in Portsmouth, New Hampshire. Practices as a sole proprietor. Registered with an NPI since 2008.

In the registry since
2008

Practice location Address checks out

1145 Sagamore Ave
Portsmouth, NH 03801-5503
Phone: (603) 431-6703
Fax: (603) 430-3753
Show map & directions

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

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X

Record details

NPI number1780857714
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedApril 10, 2008
Last updated in NPPESApril 10, 2008

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