Individual provider Active NPI

Joshua Miles Diamond, MD

  • Neurological Surgery Physician
  • Seattle, WA
National Provider Identifier
1497311641
Registry record updated Jun 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
MD.MD.70102491 Issued in WA
Practice address
1959 NE Pacific St
Seattle, WA 98195-0001
Phone
(206) 520-5000
NPI assigned
May 14, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 23, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X MD.MD.70102491 WA Primary

Addresses

Primary practice location

1959 NE Pacific St
Seattle, WA 98195-0001

Mailing address

PO Box 50095
Seattle, WA 98145-5095

Other practice location 1

1550 N 115th St
Seattle, WA 98133-8401
Phone (206) 520-5000

Other names 1

  • Joshua Miles Dreyzen Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
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.

National Provider Directory

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

Interoperability endpoints

  • Direct secure messaging: jdreyzen248957@direct.healthsystem.virginia.edu

NPI Registry JSON

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

{
    "created_epoch": "1557792000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782172800000",
    "number": "1497311641",
    "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": "1959 NE PACIFIC ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981950001",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1550 N 115th St",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981338401",
            "country_code": "US",
            "telephone_number": "206-520-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAMOND",
        "first_name": "JOSHUA",
        "middle_name": "MILES",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-14",
        "last_updated": "2026-06-23",
        "certification_date": "2026-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "WA",
            "license": "MD.MD.70102491",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOSHUA",
            "last_name": "DREYZEN",
            "middle_name": "MILES",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.