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

Mark Germack DDS PLLC

Organization Dental Clinic/Center · NPI 1982552618

Mark Germack DDS PLLC is a Dental Clinic/Center in Mercer Island, Washington. Registered with an NPI since 2026.

In the registry since
2026
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

8015 SE 28th St Ste 205
Mercer Island, WA 98040-2910
Phone: (206) 913-2599
Show map & directions

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

Specialties & licences

Dental Clinic/Center (primary) Taxonomy 261QD0000X

Record details

NPI number1982552618
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationMark Germack DDS PLLC
Authorized official Mark Germack — Owner/Endodontist · (206) 450-1939
NPI enumeratedMarch 18, 2026
Last updated in NPPESMarch 18, 2026
Certification dateMarch 18, 2026
Mailing address8015 Se 28th St Ste 205, Mercer Island, WA 98040-2910

Other providers in Mercer Island