Mark Robert Breinholt, DDS

Primary specialty

DentistTaxonomy code 122300000X

License

DENT.DE.61445260 Issued in WA

Practice address

3400 Squalicum Pkwy Ste 103
Bellingham, WA 98225-1933

Phone

(360) 734-6728

Fax

(360) 756-8970

NPI assigned

May 23, 2023

Sex

Male

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.

• Mark Breinholt DDS PLLC

  • Dental Clinic/Center
  • Bellingham, WA
  • NPI 1457203945
  NPD Authorized official

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

{
    "created_epoch": "1684800000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788825600000",
    "number": "1053003434",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "104 6TH ST",
            "city": "LYNDEN",
            "state": "WA",
            "postal_code": "982641959",
            "telephone_number": "360-354-0206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 SQUALICUM PKWY STE 103",
            "city": "BELLINGHAM",
            "state": "WA",
            "postal_code": "982251933",
            "telephone_number": "360-734-6728",
            "fax_number": "360-756-8970"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BREINHOLT",
        "first_name": "MARK",
        "middle_name": "ROBERT",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-05-23",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "WA",
            "license": "DENT.DE.61445260",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ian Braun
• Ixa Yamilet Bravo Reyna
• Joshua Dean Brawley, PAC
• Scarlet Breakspear-Knott, LMT
• Philippa J Breakspear, CDP, CC
• Brent Belford Psychotherapy PLLC
• Savanna Brentlinger
• Meagan Victoria Brewster, ND
• Jennifer Joan Brice, OTR/L
• Tawny L Bridge Pope, PT

• Dentist in Bellingham, WA
• Providers in Bellingham, WA by specialty
• Dentist in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.