NPIMap

Individual provider Active NPI

Michael John Zylstra, MD

  • Emergency Medicine Physician
  • Seattle, WA
National Provider Identifier
1437679636
Registry record updated Sep 18, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
MD61531935 Issued in WA
Practice address
325 9TH Ave
Seattle, WA 98104-2420
Phone
(206) 520-5000
NPI assigned
Jun 20, 2017
Last updated
Sep 18, 2024By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 18, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 314338 NY
Emergency Medicine Physician 207P00000X MD61531935 WA Primary

Addresses

Primary practice location

325 9TH Ave
Seattle, WA 98104-2420

Mailing address

PO Box 50095
Seattle, WA 98145-5095
Phone (206) 520-5700

Other practice location 1

Madigan Army Medical Center 9040 Jackson Ave
Tacoma, WA 98431-0001
Phone (253) 968-2252

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, 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
I20220119001907 NY Practitioner - Emergency Medicine 9133551591 Reassigns benefits to 2 organizations
I20240917004307 WA Practitioner - Emergency Medicine 9133551591 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Rutgers New Jersey Medical School, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Highline Emergency Physicians PLLCGroup PAC ID 0547436313, 19 clinicians

Practice addresses (Care Compare)

16251 Sylvester Rd SW
Burien, WA 98166-3017
Phone (206) 431-5314

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
94.27 of 100Reported as apm
Quality
82.87
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
314338NYMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The Association of University Physicians CurrentSince Sep 10, 2024 Accepting new patients
Public Hospital District No 1 of Mason County Wa CurrentSince Dec 23, 2024 Accepting new patients
Grant County Public Hospital District 1 CurrentSince Apr 22, 2025 Accepting new patients
Grant County Public Hospital District 1 Current Accepting new patients
Highline Emergency Physicians PLLC Emergency Medicine CurrentSince Mar 1, 2025 Accepting new patients
Schuyler Hospital Inc CurrentSince Oct 15, 2023 Accepting new patients
Public Hospital District No 1 of Mason County CurrentSince Dec 23, 2024 Accepting new patients
Schuyler Hospital Inc CurrentSince Oct 15, 2023 Accepting new patients
Grant County Public Hospital District 1 CurrentSince Apr 22, 2025 Accepting new patients
Cma Medical Practice PLLC Emergency Medicine CurrentSince Jan 14, 2022 Accepting new patients
Grant County Public Hospital District 1 Past Accepting new patients

Locations

1129 Commons Ave
#C
Cortland, NY 13045
Phone (607) 339-0456

101 Harris B Dates Dr
Ithaca, NY 14850
Phone (607) 274-4011

220 Steuben St
Montour Falls, NY 14865
Phone (607) 535-7121

16251 Sylvester Rd SW
Burien, WA 98166
Phone (206) 244-9970

2000 S Clover Dr
Moses Lake, WA 98837
Phone (509) 765-5606

660 S Coolidge St
Moses Lake, WA 98837

801 E Wheeler Rd
Moses Lake, WA 98837
Phone (509) 765-5606

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

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

901 Mountain View Dr
Shelton, WA 98584
Phone (360) 426-1611

12844 Military Rd S
Tukwila, WA 98168
Phone (206) 244-0180

Interoperability endpoints

  • Direct secure messaging: mzylstra21538@direct.xtensys.com

Organizations & group practices 11

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 7

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": "1497916800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1726617600000",
    "number": "1437679636",
    "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",
            "telephone_number": "206-520-5700"
        },
        {
            "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": [
        {
            "address_1": "Madigan Army Medical Center 9040 Jackson Ave",
            "address_purpose": "LOCATION",
            "city": "Tacoma",
            "state": "WA",
            "postal_code": "984310001",
            "country_code": "US",
            "telephone_number": "253-968-2252",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZYLSTRA",
        "first_name": "MICHAEL",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-20",
        "last_updated": "2024-09-18",
        "certification_date": "2024-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "314338",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WA",
            "license": "MD61531935",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.