Maxwell M Zamzow, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

AP61183580 Issued in WA

Practice address

2901 174TH St NE
Marysville, WA 98271-4743

Phone

(360) 454-1900

Fax

(360) 454-1991

NPI assigned

Jul 1, 2021

Last updated

Jun 8, 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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

The Polyclinic PLLCGroup PAC ID 2163328196, 364 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mzamzow15765@direct.tecmc.com

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.

• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766

  Family Medicine

  Medicare reassignment Care Compare group NPD
• The Polyclinic PLLC

  dba Optum - Broadway

  • Audiologist
  • Seattle, WA
  • NPI 1174594634

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Optum Care Washington PLLC

  • Durable Medical Equipment & Medical Supplies
  • Marysville, WA
  • NPI 1194428425

  Family Medicine

  NPD
• The Polyclinic

  • Radiation Oncology Physician
  • Seattle, WA
  • NPI 1962824219
  NPD
• The Polyclinic PLLC

  dba Optum Tacoma

  • Durable Medical Equipment & Medical Supplies
  • Tacoma, WA
  • NPI 1831411487

  Family Medicine

  NPD
• Western Washington Medical Group, Inc PS

  dba Western Wa Medical Group Dept of Orthopedics

  • Orthopaedic Surgery Physician
  • Everett, WA
  • NPI 1376761775
  NPD
• Western Washington Medical Group, Inc PS

  dba WWMG Department of Psychiatry

  • Psychiatry Physician
  • Everett, WA
  • NPI 1396413803
  NPD
• Western Washington Medical Group, Inc PS

  dba Western Washington Medical Group Dept of Infectious Disease

  • Infectious Disease Physician
  • Everett, WA
  • NPI 1427816305
  NPD
• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1154318103
  NPD (past)
• The Polyclinic PLLC

  dba Optum Care Washington

  • Durable Medical Equipment & Medical Supplies
  • Seattle, WA
  • NPI 1346620200

  Family Medicine

  NPD (past)

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

{
    "created_epoch": "1625097600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780876800000",
    "number": "1326618281",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7600 EVERGREEN WAY",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982036421",
            "telephone_number": "206-860-5414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2901 174TH ST NE",
            "city": "MARYSVILLE",
            "state": "WA",
            "postal_code": "982714743",
            "telephone_number": "360-454-1900",
            "fax_number": "360-454-1991"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZAMZOW",
        "first_name": "MAXWELL",
        "middle_name": "M",
        "credential": "ARNP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-07-01",
        "last_updated": "2026-06-08",
        "certification_date": "2026-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WA",
            "license": "AP61183580",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WA",
            "license": "RN60426586",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "EPIC",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "3726 Broadway Lbby",
            "city": "Everett",
            "state": "WA",
            "country_code": "US",
            "postal_code": "982013787",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Deidre D Zeh-Rahk
• Zeteo Ministries (Edify Mental Health)
• Maureen Ming Yuan Zhang, BCBA
• Tyler Ziebarth, MA, MHP, LMHCA
• Brooke Ziegler, OTR/L

• Nurse Practitioner in Marysville, WA
• Providers in Marysville, WA by specialty
• Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.