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

Dr. William Grass, DDS

Individual provider General Practice Dentistry · NPI 1124196225

Dr. William Grass, DDS is a General Practice Dentistry in Amherst, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

31 Hall Dr # B
Amherst, MA 01002-2751
Phone: (413) 253-9505
Fax: (413) 256-3188
Show map & directions

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

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 14821 (MA)

Record details

NPI number1124196225
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedNovember 30, 2006
Last updated in NPPESJanuary 24, 2013

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