Donna Louise Massoth, DDS MSD PH D

Primary specialty

PeriodonticsTaxonomy code 1223P0300X

License

DE00005905 Issued in WA

Practice address

4500 Sand Point Way NE
#218
Seattle, WA 98105-3900

Phone

(206) 524-3773

Fax

(206) 526-7361

NPI assigned

Jun 16, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Dkeidek, Fernyhough, Gile, Hagel, Nov & Quickstad PLLC

  • Periodontics
  • Seattle, WA
  • NPI 1659219350
  NPD (past)

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

{
    "created_epoch": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1649214925",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4500 SAND POINT WAY NE",
            "address_2": "#218",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053900",
            "telephone_number": "206-524-3773",
            "fax_number": "206-526-7361"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 SAND POINT WAY NE",
            "address_2": "#218",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053900",
            "telephone_number": "206-524-3773",
            "fax_number": "206-526-7361"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASSOTH",
        "first_name": "DONNA",
        "middle_name": "LOUISE",
        "credential": "DDS MSD PH D",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0300X",
            "taxonomy_group": "",
            "desc": "Dentist, Periodontics",
            "state": "WA",
            "license": "DE00005905",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lasalle Massey
• Philip M. Massey, M.D.
• Shalonte Massey
• Shatreen Masshoor, MD
• Toby Ellen Massman, PHARM.D
• Elaine Mast
• Matthew Mast, DPT
• Sharon Mast, LICSW
• Victoria Mastel, MSW
• Sue Masten, M.D.

• Periodontics in Seattle, WA
• Providers in Seattle, WA by specialty
• Periodontics in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.