Margaret Evelyn Duffy, P.A. - C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA10003777 Issued in WA

Practice address

904 7TH Ave
Seattle, WA 98104-1132

Phone

(206) 860-4545

Fax

(206) 860-2369

NPI assigned

Jun 19, 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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

The Polyclinic PLLCGroup PAC ID 2163328196, 364 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mduffy21868@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.

• The Polyclinic PLLC

  dba Optum - Broadway

  • Audiologist
  • Seattle, WA
  • NPI 1174594634
  Medicare reassignment Care Compare group NPD
• The Polyclinic PLLC

  dba Optum Tacoma

  • Durable Medical Equipment & Medical Supplies
  • Tacoma, WA
  • NPI 1831411487
  NPD
• Seattle Primary Physicians, PLLC

  • Family Medicine Physician
  • Seattle, WA
  • NPI 1043255961
  NPD (past)
• The Polyclinic PLLC

  dba Optum Care Washington

  • Durable Medical Equipment & Medical Supplies
  • Seattle, WA
  • NPI 1346620200
  NPD (past)

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

{
    "created_epoch": "1150675200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1154366391",
    "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": "904 7TH AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981041132",
            "telephone_number": "206-860-4545",
            "fax_number": "206-860-2369"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFFY",
        "first_name": "MARGARET",
        "middle_name": "EVELYN",
        "credential": "P.A. - C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-19",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA10003777",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8354243",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Matthew Duffey
• Cory Ann Duffield, BA
• Rosemary Duffy-Greslo, LMFT
• Brandon Michael Duffy
• Caitlin Duffy
• Sara Duffy
• Stephen Michael Duffy
• Corey Dugan Barrett
• Bethany Jerabek Dugan, DNP, ARNP, CPNP-PC
• Melissa Grace Dugaw, LMP

• Physician Assistant in Seattle, WA
• Providers in Seattle, WA by specialty
• Physician Assistant in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 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.