Mark Germack DDS PLLC

Primary specialty

Dental Clinic/CenterTaxonomy code 261QD0000X

Legal business name

MARK GERMACK DDS PLLC

Practice address

8015 SE 28TH St Ste 205
Mercer Island, WA 98040-2910

Phone

(206) 913-2599

NPI assigned

Mar 18, 2026

Organization subpart

Yes

Parent organization

MARK GERMACK DDS PLLCAs reported in NPPES

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Mark Earl Germack, DDSNPI 1144349119

Title

Owner/Endodontist

Phone

(206) 450-1939

Specialties & licenses 1

Addresses

Tax ID family

Mark Germack DDS PLLC2 organizations share this tax ID, including this one

Part of

Mark Germack DDS PLLC

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

• Mark Germack DDS PLLC

  • Dental Clinic/Center
  • Seattle, WA
  • NPI 1013360502
  NPD tax ID

Locations

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

• Mark Germack DDS PLLC

  • Dental Clinic/Center
  • Seattle, WA
  • NPI 1013360502
  NPPES parent name

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Mark Earl Germack, D.D.S.

  • Endodontics
  • Seattle, WA
  • NPI 1144349119
  NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1773792000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773792000000",
    "number": "1982552618",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8015 SE 28TH ST STE 205",
            "city": "MERCER ISLAND",
            "state": "WA",
            "postal_code": "980402910",
            "telephone_number": "206-913-2599"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8015 SE 28TH ST STE 205",
            "city": "MERCER ISLAND",
            "state": "WA",
            "postal_code": "980402910",
            "telephone_number": "206-913-2599"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARK GERMACK DDS PLLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "MARK GERMACK DDS PLLC",
        "enumeration_date": "2026-03-18",
        "last_updated": "2026-03-18",
        "certification_date": "2026-03-18",
        "status": "A",
        "authorized_official_last_name": "GERMACK",
        "authorized_official_first_name": "MARK",
        "authorized_official_middle_name": "EARL",
        "authorized_official_title_or_position": "OWNER/ENDODONTIST",
        "authorized_official_telephone_number": "206-450-1939",
        "authorized_official_credential": "DDS"
    },
    "taxonomies": [
        {
            "code": "261QD0000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Dental",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mak Abulhosn Podiatry Services PLLC
• Shelley M Malcolm, MS, CN
• Jill A Manasco, OT
• Theodore Dungan Mandelkorn, MD
• Nancy Mar
• James C Martin, MD
• Bryan Gene Maruhashi, D.D.S.
• Corrado Rain Masciocchi, O.D.
• Jessica Le Massey, PHCY-TEC
• Matthew T Streelman DDS MD PLLC

• Dental Clinic/Center in Mercer Island, WA
• Providers in Mercer Island, WA by specialty
• Dental Clinic/Center in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.