Hector Diaz-Otero, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

MD70027777 Issued in WA

Practice address

9710 State Ave
Marysville, WA 98270-2232

Phone

(606) 531-7423

Fax

(360) 657-3095

NPI assigned

Apr 22, 2022

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

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Specialty

Family Practice

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sea Mar Community Health CentersGroup PAC ID 7315831161, shared by 37 NPIs, 235 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: hdiazotero665221@direct.multicare.org

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.

• Providence Health & Services-Wa

  • General Acute Care Hospital
  • Everett, WA
  • NPI 1700037801
  NPD (past)

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

{
    "created_epoch": "1650585600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753920000000",
    "number": "1508500810",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 34703",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981241703"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9710 STATE AVE",
            "city": "MARYSVILLE",
            "state": "WA",
            "postal_code": "982702232",
            "telephone_number": "606-531-7423",
            "fax_number": "360-657-3095"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1202 Martin Luther King Jr Way",
            "address_purpose": "LOCATION",
            "city": "Tacoma",
            "state": "WA",
            "postal_code": "984053926",
            "country_code": "US",
            "telephone_number": "253-441-4742",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ-OTERO",
        "first_name": "HECTOR",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-22",
        "last_updated": "2025-07-31",
        "certification_date": "2025-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WA",
            "license": "MD70027777",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Grace Gretchen Delap
• Maria Teresa Dellino
• Dennis L. Booth. D.C., PLLC
• Dental Professionals of Washington Quirt Mongrain Gibree PC
• Benjamin Devaud
• Dirk T. de Young, D.D.S.
• Rebecca Lynn Dirks, N.D.
• Austin Taylor Dix
• Kimberly DO
• Dr. Seongwon Choi PLLC.

• Family Medicine Physician in Marysville, WA
• Providers in Marysville, WA by specialty
• Family Medicine Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 31, 2025; 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.