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

Dr. Donald R Welsh, DMD

Individual provider General Practice Dentistry · NPI 1407884679

Dr. Donald R Welsh, DMD is a General Practice Dentistry in Portsmouth, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2006.

Licensed in
NH
In the registry since
2006
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

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Practice location Address checks out

320 Union St
Portsmouth, NH 03801-5052
Phone: (603) 436-2144
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 2064 (NH)

Record details

NPI number1407884679
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorNo
NPI enumeratedJune 28, 2006
Last updated in NPPESJuly 8, 2007

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