Individual provider Active NPI

Emily Sierra Greathouse, RDH

  • Dental Hygienist
  • Ferndale, WA
National Provider Identifier
1861311342
Registry record updated Jul 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Dental HygienistTaxonomy code 124Q00000X
License
DEHY.DH.70146018 Issued in WA
Practice address
6060 Portal Way
Ferndale, WA 98248-9360
Phone
(360) 676-6177
Fax
(360) 671-3574
NPI assigned
Jul 10, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Dental Hygienist 124Q00000X DEHY.DH.70146018 WA Primary

Addresses

Primary practice location

6060 Portal Way
Ferndale, WA 98248-9360

Mailing address

740 N Park St
Lynden, WA 98264-8586
Phone (360) 483-8343

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

NPI Registry JSON

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

{
    "created_epoch": "1783641600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1861311342",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "740 N PARK ST",
            "city": "LYNDEN",
            "state": "WA",
            "postal_code": "982648586",
            "telephone_number": "360-483-8343"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6060 PORTAL WAY",
            "city": "FERNDALE",
            "state": "WA",
            "postal_code": "982489360",
            "telephone_number": "360-676-6177",
            "fax_number": "360-671-3574"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREATHOUSE",
        "first_name": "EMILY",
        "middle_name": "SIERRA",
        "credential": "RDH",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-07-10",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "124Q00000X",
            "taxonomy_group": "",
            "desc": "Dental Hygienist",
            "state": "WA",
            "license": "DEHY.DH.70146018",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ferndale, WA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.