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

Guy V Mertz, DDS

Individual provider General Practice Dentistry · NPI 1881881472

Guy V Mertz, DDS is a General Practice Dentistry in Longmont, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

Licensed in
CO
In the registry since
2007
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

1950 Terry St
Longmont, CO 80501-1835
Phone: (303) 678-1111
Fax: (303) 678-5168
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 5948 (CO)

Record details

NPI number1881881472
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedSeptember 27, 2007
Last updated in NPPESSeptember 27, 2007
Mailing address1950 Terry St, Longmont, CO 80501-1835

Other providers in Longmont