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

Dr. Ralph S Guercio, DDS

Individual provider Dentist · NPI 1205979549

Dr. Ralph S Guercio, DDS is a Dentist in Merrimack, New Hampshire. Licensed in Massachusetts and New Hampshire. Registered with an NPI since 2007.

Licensed in
MA, NH
In the registry since
2007
Specialties on file
2
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

382 Daniel Webster Hwy
Merrimack, NH 03049
Phone: (603) 424-6131
Fax: (603) 424-3620
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence NH1517 (NH)
Dentist Taxonomy 122300000X · Licence 13303 (MA)

Record details

NPI number1205979549
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedFebruary 15, 2007
Last updated in NPPESJuly 8, 2007
Mailing address66 Meadow Drive, Hollis, NH 03049

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