Thompson Mainstay II LLC

Primary specialty

Dental Clinic/CenterTaxonomy code 261QD0000X

Legal business name

THOMPSON MAINSTAY II LLC

Practice address

1585 SW Marlow Ave Ste 100
Portland, OR 97225-5177

Phone

(503) 297-1717

NPI assigned

Jul 21, 2026

Organization subpart

No

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

Authorized official

Name

Jared M Thompson, DMDNPI 1649283235

Title

Owner

Phone

(503) 351-9043

Specialties & licenses 1

Addresses

Locations

Practitioners 3

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

• Jared Michael Thompson, DMD

  • General Practice Dentistry
  • Forest Grove, OR
  • NPI 1649283235
  NPD (past) Authorized official
• Gregory Mark Atack, DMD, FAGD

  • General Practice Dentistry
  • Portland, OR
  • NPI 1508839507
  NPD (past)
• Brianna Kay Winter Hansen, RDH

  • Dental Hygienist
  • Forest Grove, OR
  • NPI 1023843976
  NPD (past)

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

{
    "created_epoch": "1784592000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1784592000000",
    "number": "1497675185",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1951 OAK ST STE A",
            "city": "FOREST GROVE",
            "state": "OR",
            "postal_code": "971162005",
            "telephone_number": "503-357-9122"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1585 SW MARLOW AVE STE 100",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972255177",
            "telephone_number": "503-297-1717"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "THOMPSON MAINSTAY II LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-07-21",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A",
        "authorized_official_last_name": "THOMPSON",
        "authorized_official_first_name": "JARED",
        "authorized_official_middle_name": "M",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "503-351-9043",
        "authorized_official_credential": "DMD"
    },
    "taxonomies": [
        {
            "code": "261QD0000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Dental",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Zac Thomas
• Zoe Lee Thomas
• Brianne Cherie Thomason, RN
• James Gibson Thomason, LMT
• Cassandra D Thompkins
• Stephanie E Thompson-McCollough, LPC
• Adam Patrick Thompson
• Amy A Thompson, QMHP-C
• Andrew L Thompson, DMD
• Anjaneik Thompson

• Dental Clinic/Center in Portland, OR
• Providers in Portland, OR by specialty
• Dental Clinic/Center in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.