Individual provider Active NPI

Joanna Zhou, M.D., MPH

  • Obstetrics & Gynecology Physician
  • Seattle, WA
National Provider Identifier
1497118905
Registry record updated May 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
MD61073713 Issued in WA
Practice address
904 7TH Ave
Seattle, WA 98104-1132
Phone
(206) 860-4541
Fax
(206) 860-4587
NPI assigned
Apr 1, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X MD61073713 WA Primary

Addresses

Primary practice location

904 7TH Ave
Seattle, WA 98104-1132

Mailing address

7600 Evergreen Way
Everett, WA 98203-6421
Phone (206) 860-5414

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20201001001900 WA Practitioner - Obstetrics/Gynecology 5193015030 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Polyclinic PLLCGroup PAC ID 2163328196, 364 clinicians

Practice addresses (Care Compare)

904 7TH Ave
Seattle, WA 98104-1132
Phone (206) 309-1760

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Optum Care Washington PLLC CurrentSince Jun 7, 2025 Accepting new patients
Optum Care Washington PLLC CurrentSince Jun 7, 2025 Accepting new patients
The Polyclinic CurrentSince Sep 30, 2020 Accepting new patients
The Polyclinic PLLC Obstetrics & Gynecology Current Accepting new patients
The Polyclinic PLLC CurrentSince Sep 30, 2020 Accepting new patients
The Polyclinic PLLC Past Accepting new patients
Peninsula Cancer Center LLC PastSince Sep 27, 2020 Accepting new patients

Locations

912 32nd St
Ste A
Anacortes, WA 98221
Phone (360) 293-4343

1330 Rockefeller Ave
Everett, WA 98201
Phone (425) 258-3903

1145 Broadway
Seattle, WA 98122

1145 Broadway
Fl 2
Seattle, WA 98122
Phone (206) 860-3509

904 7th Ave
Seattle, WA 98104
Phone (206) 223-6487

1201 N 175th St
Shoreline, WA 98133
Phone (425) 339-4299

Interoperability endpoints

  • Direct secure messaging: jzhou28837@direct.tecmc.com

Organizations & group practices 7

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.

NPI Registry JSON

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

{
    "created_epoch": "1459468800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1497118905",
    "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": "206-860-4541",
            "fax_number": "206-860-4587"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZHOU",
        "first_name": "JOANNA",
        "credential": "M.D., MPH",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-01",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WA",
            "license": "MD61073713",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.