Ellen Simone Passloff, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

MD00030068 Issued in WA

Practice address

1201 N 175TH St
Shoreline, WA 98133-5064

Phone

(206) 401-3200

NPI assigned

Nov 6, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 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: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: epassloff16214@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 and National Provider Directory roles.

• Optum Care Washington PLLC

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

  Pediatrics

  Medicare reassignment NPD
• Optum Care Washington PLLC

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

  Pediatrics

  NPD
• Optum Care Washington PLLC

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

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

{
    "created_epoch": "1162771200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1033288188",
    "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": "1201 N 175TH ST",
            "city": "SHORELINE",
            "state": "WA",
            "postal_code": "981335064",
            "telephone_number": "206-401-3200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PASSLOFF",
        "first_name": "ELLEN",
        "middle_name": "SIMONE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-06",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "WA",
            "license": "MD00030068",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8154049",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jeong Yean Park, RPH
• Jisun Park
• Esther Parker, PHARMD
• Mark Parker, D.C.
• Nicole Parot, M.S. OTR/L
• Carolyn Michelle Patel, PT, DPT
• Zina Patel
• Antonia Anja Rafaela Patten, MSW
• Adryenne Patterson, MSW, LICSWA, MHP
• Paul a Mack DC PS Inc

• Pediatrics Physician in Shoreline, WA
• Providers in Shoreline, WA by specialty
• Pediatrics Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.