Active NPI
Stephen Williams, CRNA
- Certified Registered Nurse Anesthetist
- Seattle, WA
National Provider Identifier
1043781412
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- AP70131226
- Practice address
- 1100 9TH Ave
Seattle, WA 98101-2756 - Phone
- (206) 223-6980
- Fax
- (206) 223-6982
- NPI assigned
- Dec 11, 2018
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | AP70131226 | WA | Primary |
| Licensed Practical Nurse | 164W00000X | LP60869466 | WA |
Addresses
Primary practice location
1100 9TH Ave
Seattle, WA 98101-2756
Mailing address
PO Box 741515
Los Angeles, CA 90074-1515
Phone (206) 223-6980
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
Care Compare profile
Medicare Care Compare- Specialty
- Certified Registered Nurse Anesthetist (Crna)
- Education
- Other, 2022
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
1100 9TH Ave
Seattle, WA 98101-2799
PO Box
Suite 741515
Los Angeles, CA 90074
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LP60869466 | WA | MD | Licensed Practical Nurse |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1544486400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788912000000",
"number": "1043781412",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 741515",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900741515",
"telephone_number": "206-223-6980",
"fax_number": "206-223-6982"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1100 9TH AVE",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981012756",
"telephone_number": "206-223-6980",
"fax_number": "206-223-6982"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WILLIAMS",
"first_name": "STEPHEN",
"credential": "CRNA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2018-12-11",
"last_updated": "2026-09-09",
"certification_date": "2026-09-09",
"status": "A"
},
"taxonomies": [
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "WA",
"license": "AP70131226",
"primary": true
},
{
"code": "164W00000X",
"taxonomy_group": "",
"desc": "Licensed Practical Nurse",
"state": "WA",
"license": "LP60869466",
"primary": false
}
],
"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 Sep 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.