Active NPI
Oregon ASC Company, LLC
- Ambulatory Surgical Clinic/Center
- Oshkosh, WI
National Provider Identifier
1124984901
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ambulatory Surgical Clinic/Center
- Legal business name
- OREGON ASC COMPANY, LLC
- Practice address
- 250 West 6TH Avenue
Suite 100
Oshkosh, WI 54902 - Phone
- (920) 651-8200
- NPI assigned
- Dec 24, 2025
- Organization subpart
- Yes
- Parent organization
- THEDACARE REGIONAL MEDICAL CENTER - APPLETON INC.
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- William Flett
- Title
- Cfo
- Phone
- (920) 454-4013
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Ambulatory Surgical Clinic/Center | 261QA1903X | Primary |
Addresses
Primary practice location
250 West 6TH Avenue
Suite 100
Oshkosh, WI 54902
Mailing address
250 W 6TH Ave Ste 100
Oshkosh, WI 54902-5910
Phone (920) 651-8200
Other names 1
- ThedaCare Oshkosh Surgery Center
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 52D2336296 | Oregon ASC Company, LLC | Certificate of waiver | Dec 29, 2027 |
National Provider Directory
National Provider Directory- Part of
- Appleton Medical Center
Member of 2
Organizations this organization is a member of, according to the National Provider Directory.
-
- General Acute Care Hospital
- Appleton, WI
- NPI 1497119218
Member Of
-
- Durable Medical Equipment & Medical Supplies
- New London, WI
- NPI 1699915504
Member Of
Locations
250 W 6th Ave
#100
Oshkosh, WI 54902
Phone (920) 651-8200
Practitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Family Medicine Physician
- Appleton, WI
- NPI 1740675040
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1766534400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1768953600000",
"number": "1124984901",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "250 W 6TH AVE STE 100",
"city": "OSHKOSH",
"state": "WI",
"postal_code": "549025910",
"telephone_number": "920-651-8200",
"fax_number": "920-831-6104"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "250 WEST 6TH AVENUE",
"address_2": "SUITE 100",
"city": "OSHKOSH",
"state": "WI",
"postal_code": "54902",
"telephone_number": "920-651-8200"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "OREGON ASC COMPANY, LLC",
"organizational_subpart": "YES",
"parent_organization_legal_business_name": "THEDACARE REGIONAL MEDICAL CENTER - APPLETON INC.",
"enumeration_date": "2025-12-24",
"last_updated": "2026-01-21",
"certification_date": "2026-01-21",
"status": "A",
"authorized_official_last_name": "FLETT",
"authorized_official_first_name": "WILLIAM",
"authorized_official_title_or_position": "CFO",
"authorized_official_telephone_number": "920-454-4013"
},
"taxonomies": [
{
"code": "261QA1903X",
"taxonomy_group": "",
"desc": "Clinic/Center, Ambulatory Surgical",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"organization_name": "ThedaCare Oshkosh Surgery Center",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Oshkosh, WI
- Sherri Olson, PA
- Sara Opat
- Ophthalmic Surgery of Wi LTD
- Ophthalmic Surgery of Wi LTD
- Alexa Oppermann, DDS
- Carin Lynn Orourke, LCSW, CSAC, ICS
- Orthopedic & Spine Therapy of Oshkosh SC
- Orthopedic & Spine Therapy of Oshkosh, SC
- Orthopedic & Sports Medicine Specialists of Green Bay, SC
- Jayson Osborn, DO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 21, 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.