Alexander Ristau, DMD

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

10672 Issued in TN

Practice address

405 13TH St
Hood River, OR 97031-1433

Phone

(541) 387-2244

NPI assigned

Oct 3, 2017

Last updated

May 1, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Locations

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

• Alexander Ristau, LLC Dba Gorge Dental

  • Dental Clinic/Center
  • Hood River, OR
  • NPI 1609713361
  NPD Authorized official
• Andrew Olsson, DDS, LLC

  dba Gorge Dental

  • General Practice Dentistry
  • Hood River, OR
  • NPI 1467728832
  NPD (past)

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

{
    "created_epoch": "1506988800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777593600000",
    "number": "1891205084",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "405 13TH ST",
            "city": "HOOD RIVER",
            "state": "OR",
            "postal_code": "970311433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "405 13TH ST",
            "city": "HOOD RIVER",
            "state": "OR",
            "postal_code": "970311433",
            "telephone_number": "541-387-2244"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RISTAU",
        "first_name": "ALEXANDER",
        "credential": "DMD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-10-03",
        "last_updated": "2026-05-01",
        "certification_date": "2026-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "TN",
            "license": "10672",
            "primary": true
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "HI",
            "license": "DT-2712",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Keagan Marie Rice
• Steve Lee Ridgeway, PT
• Sarah J Ridley, DPT
• Trey Rigert, MD
• Frank Joseph Rinella III, D.O.
• Ritacca Dentistry DDS (John Ritacca, DDS LLC)
• Martina Rizzo, LMT
• Kathy Lynn Roberge, PTA
• Alexander Roddvik, D.C
• Dee Dee J Rodgers

• General Practice Dentistry in Hood River, OR
• Providers in Hood River, OR by specialty
• General Practice Dentistry in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 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.