Active NPI
Matthew Sadang, DC, MS
- Chiropractor
- Seattle, WA
National Provider Identifier
1306735972
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Chiropractor
- License
- CHIR.CH.70018305
- Practice address
- 1916 23Rd Ave S Ste B
Seattle, WA 98144-4616 - Phone
- (206) 362-3344
- Fax
- (206) 362-3344
- NPI assigned
- Jun 30, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Chiropractor | 111N00000X | CHIR.CH.70018305 | WA | Primary |
Addresses
Primary practice location
1916 23Rd Ave S Ste B
Seattle, WA 98144-4616
Mailing address
1916 23Rd Ave S Ste B
Seattle, WA 98144-4616
Phone (206) 362-3344
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Master of Science
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| CHIR.CH.70018305 | WA | MD | Chiropractor |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Accident and Injury Care, PS | Chiropractor | Current | Accepting new patients |
Locations
1916 23rd Ave S
Ste B
Seattle, WA 98144
Phone (206) 362-3344
Organizations & group practices 1
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": "1751241600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751241600000",
"number": "1306735972",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1916 23RD AVE S STE B",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981444616",
"telephone_number": "206-362-3344",
"fax_number": "206-362-3344"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1916 23RD AVE S STE B",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981444616",
"telephone_number": "206-362-3344",
"fax_number": "206-362-3344"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SADANG",
"first_name": "MATTHEW",
"credential": "DC, MS",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2025-06-30",
"last_updated": "2025-06-30",
"certification_date": "2025-06-13",
"status": "A"
},
"taxonomies": [
{
"code": "111N00000X",
"taxonomy_group": "",
"desc": "Chiropractor",
"state": "WA",
"license": "CHIR.CH.70018305",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Seattle, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.