NPIMap

Individual provider Active NPI

Matthew Old, MD

  • Otolaryngology Physician
  • Seattle, WA
National Provider Identifier
1699891242
Registry record updated Feb 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
MD70069489 Issued in WA
Practice address
1959 NE Pacific St
Seattle, WA 98195-0001
Phone
(206) 520-5000
NPI assigned
Mar 22, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Otolaryngology Physician 207Y00000X MD70069489 WA Primary

Addresses

Primary practice location

1959 NE Pacific St
Seattle, WA 98195-0001

Mailing address

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

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mold7751@direct.osumc.edu Direct

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260109002176 WA Practitioner - Otolaryngology 0143391094 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
Other, 2003
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)

1701 Columbia Rd
Seattle, WA 98195-0001
Phone (206) 598-3100

1959 NE Pacific St
Seattle, WA 98195-0001
Phone (206) 598-4333

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

Hospital & facility affiliations

  • James Cancer Hospital & Solove Research Institute Hospital, Columbus, OH, CCN 360242
  • University of Washington Medical Ctr Hospital, Seattle, WA, CCN 500008
  • Ohio State University State Health System Hospital, Columbus, OH, CCN 360085
  • Harborview Medical Center Hospital, Seattle, WA, CCN 500064

Procedures performed for Medicare patients

ProcedureNumber of procedures
Upper gastrointestinal (GI) endoscopy for acid reflux19
Melanoma (skin cancer) excision1-10
Removal of tissue1-10
Skin biopsy1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD70069489WAMDOtolaryngology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The Association of University Physicians CurrentSince Dec 30, 2025 Accepting new patients
Arthur G James Cancer Hospital and Research Institute Past Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients

Locations

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

Interoperability endpoints

  • Direct secure messaging: mold7751@direct.osumc.edu

Organizations & group practices 3

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 6

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": "1174521600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770076800000",
    "number": "1699891242",
    "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": "1959 NE PACIFIC ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981950001",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLD",
        "first_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-22",
        "last_updated": "2026-02-03",
        "certification_date": "2026-02-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "WA",
            "license": "MD70069489",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mold7751@direct.osumc.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "460 W 10th Ave Fl 5",
            "city": "Columbus",
            "state": "OH",
            "country_code": "US",
            "postal_code": "432101240",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.