Active NPI
William Sprague Trask IV, D.O.
- Anesthesiology Physician
- Boulder, CO
National Provider Identifier
1184706608
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- 49491
- Practice address
- 4747 Arapahoe Ave
Boulder, CO 80303-1131 - Phone
- (303) 415-2532
- Fax
- (303) 785-1725
- NPI assigned
- Oct 20, 2006
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | OL20000111 | WA | |
| Anesthesiology Physician | 207L00000X | OP60150344 | WA | |
| Anesthesiology Physician | 207L00000X | 49491 | CO | Primary |
Addresses
Primary practice location
4747 Arapahoe Ave
Boulder, CO 80303-1131
Mailing address
PO Box 21147
Boulder, CO 80308-4147
Phone (303) 415-2532
Other practice location 1
12040 NE 128th St
Mail Stop #69
Kirkland, WA 98034-3013
Phone (425) 899-3455
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Anesthesiology
- Education
- At Still University of Health Sciences, College of Osteo Med, Kirksville, 2006
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
4747 Arapahoe Ave
Boulder, CO 80303-1131
Phone (303) 415-7000
Hospital & facility affiliations
- Boulder Community Health
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| OL20000111 | WA | MD | Anesthesiology Physician |
| OP60150344 | WA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Boulder Valley Anesthesiology, PLLC | Anesthesiology | Current | Accepting new patients |
Locations
4747 Arapahoe Ave
Boulder, CO 80303
Phone (303) 415-7000
1100 Balsam Ave
Boulder, CO 80304
Phone (303) 415-7000
10170 Church Ranch Way
Westminster, CO 80021
Phone (303) 328-3400
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.
-
- Anesthesiology Physician
- Boulder, CO
- NPI 1962431668
Hospital & facility affiliations 34
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Sleep Disorder Diagnostic Clinic/Center
- Boulder, CO
- NPI 1093357907
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1161302400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1551484800000",
"number": "1184706608",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 21147",
"city": "BOULDER",
"state": "CO",
"postal_code": "803084147",
"telephone_number": "303-415-2532",
"fax_number": "303-785-1725"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4747 ARAPAHOE AVE",
"city": "BOULDER",
"state": "CO",
"postal_code": "803031131",
"telephone_number": "303-415-2532",
"fax_number": "303-785-1725"
}
],
"practiceLocations": [
{
"address_1": "12040 NE 128th St",
"address_2": "Mail Stop #69",
"address_purpose": "LOCATION",
"city": "Kirkland",
"state": "WA",
"postal_code": "980343013",
"country_code": "US",
"telephone_number": "425-899-3455",
"fax_number": "425-899-3478",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "TRASK",
"first_name": "WILLIAM",
"middle_name": "SPRAGUE",
"name_prefix": "Dr.",
"name_suffix": "IV",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-20",
"last_updated": "2019-03-02",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "WA",
"license": "OL20000111",
"primary": false
},
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "WA",
"license": "OP60150344",
"primary": false
},
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "CO",
"license": "49491",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Boulder, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 2, 2019; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- 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.