NPIMap

Individual provider Active NPI

Siena Megan Duarte, MD

  • Neurology Physician
  • Seattle, WA
National Provider Identifier
1053979591
Registry record updated Jul 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
MD61668104 Issued in WA
Practice address
325 9TH Ave
Seattle, WA 98104-2420
Phone
(206) 520-5000
NPI assigned
May 30, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 29, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X MD61668104 WA Primary

Addresses

Primary practice location

325 9TH Ave
Seattle, WA 98104-2420

Mailing address

PO Box 50095
Seattle, WA 98145-5095

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, WA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230607001136 CA Practitioner - Neurology 0244697258 Reassigns benefits to 3 organizations
I20250812004674 WA Practitioner - NeurologyPractitioner - Critical Care (Intensivists) 0244697258 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
NeurologyAlso: Critical Care (Intensivists)
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians

Practice addresses (Care Compare)

325 9TH Ave
Seattle, WA 98104-2420
Phone (206) 731-3000

Hospital & facility affiliations

  • Harborview Medical Center Hospital, Seattle, WA, CCN 500064
  • University of Washington Medical Ctr Hospital, Seattle, WA, CCN 500008

Merit-based Incentive Payment System (MIPS)

Final score
87.01 of 100Reported as group
Quality
86.78
Improvement activities
40
Cost
70.46

Merit-based Incentive Payment System (MIPS)

Final score
97.28 of 100Reported as group
Quality
89.92
Promoting interoperability
100
Improvement activities
40
Cost
78.23

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco Neurology CurrentSince Aug 15, 2023 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 15, 2023 Accepting new patients
The Association of University Physicians CurrentSince Jun 29, 2025 Accepting new patients
University of California San Francisco Current Accepting new patients
University of California San Francisco CurrentSince Aug 15, 2023 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
University of California SFGH Medical Group Neurology CurrentSince Jun 30, 2023 Accepting new patients
UCSF Medical Group Business Services Neurology CurrentSince Jul 15, 2023 Accepting new patients
University of California SFGH Medical Group CurrentSince Jun 30, 2023 Accepting new patients

Locations

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

2001 The Embarcadero
Ofc Of
San Francisco, CA 94143
Phone (628) 224-5503

1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

1001 Potrero Ave
Bldg 1
San Francisco, CA 94110
Phone (628) 206-6182

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

1959 NE Pacific St
Seattle, WA 98195
Phone (206) 598-4333

325 9th Ave
Seattle, WA 98104
Phone (206) 731-3000

Organizations & group practices 9

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1559174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753747200000",
    "number": "1053979591",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "325 9TH AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981042420",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUARTE",
        "first_name": "SIENA",
        "middle_name": "MEGAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-30",
        "last_updated": "2025-07-29",
        "certification_date": "2025-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "WA",
            "license": "MD61668104",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.