William Carl Marson, DC

Primary specialty

Orthopedic ChiropractorTaxonomy code 111NX0800X

License

CH00003099 Issued in WA

Practice address

4300 198TH St SW Ste 300
Lynnwood, WA 98036-6771

Phone

(425) 361-1122

Fax

(206) 324-1178

NPI assigned

Feb 8, 2007

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)

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.

• Monroe Chiropractic and Alternative Medicine Center PS

  • Chiropractor
  • Monroe, WA
  • NPI 1225125651
  NPD (past)
• Positive Chiropractic and Wellness

  • Chiropractor
  • Kirkland, WA
  • NPI 1427392836
  NPD (past)

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

{
    "created_epoch": "1170892800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774828800000",
    "number": "1922149574",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4300 198TH ST SW STE 300",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "980366771",
            "telephone_number": "425-361-1122",
            "fax_number": "206-324-1178"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4300 198TH ST SW STE 300",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "980366771",
            "telephone_number": "425-361-1122",
            "fax_number": "206-324-1178"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARSON",
        "first_name": "WILLIAM",
        "middle_name": "CARL",
        "name_prefix": "Dr.",
        "credential": "DC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-08",
        "last_updated": "2026-03-30",
        "certification_date": "2026-03-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111NX0800X",
            "taxonomy_group": "",
            "desc": "Chiropractor, Orthopedic",
            "state": "WA",
            "license": "CH00003099",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristie Jo Marlett, PHARM D
• David Christopher Marlow, M.D.
• Rebecca Sarah Marlowe, M.A.
• Yohanna Itzel Marquez
• Julia Marshall
• Elaine Martel, M.D.
• Martha Afh LLC
• Martha Lake Dental Center
• Martha Lake Physical Therapy Inc
• Ann Martin, M.S.

• Orthopedic Chiropractor in Lynnwood, WA
• Providers in Lynnwood, WA by specialty
• Orthopedic Chiropractor in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 30, 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.