Active NPI
William T Swearingen, DO
- Family Medicine Physician
- Mercer, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 13210-321
- Practice address
- 5110N W Hwy 51
Mercer, WI 54547-8919 - Phone
- (888) 652-5033
- NPI assigned
- Jul 19, 2006
- Last updated
- Dec 10, 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 3993 | OK | |
| Family Medicine Physician | 207Q00000X | 13210-321 | WI | Primary |
Addresses
Primary practice location
5110N W Hwy 51
Mercer, WI 54547-8919
Mailing address
1307 N Saint Joseph Ave
Marshfield, WI 54449-1340
Phone (715) 221-5600
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OK, WI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Oklahoma State University College of Osteopathic Medicine, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2605 SW 119TH St a
Primary Care
Oklahoma City, OK 73170-2601
Phone (405) 912-3400
2605 SW 119TH St B
Chiropractic and Wellness Clinic
Oklahoma City, OK 73170-2601
Phone (405) 912-3900
630 S Central Ave
Suite 600B
Marshfield, WI 54449-4196
Phone (877) 998-0024
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.91 of 100
- Quality
- 76.55
- Promoting interoperability
- 100
- Improvement activities
- 40
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Removal or shaving of skin growth | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 13210-321 | WI | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Jackson County Memorial Hospital Authority | Past | Accepting new patients | |
| Norman Regional Hospital Authority | Past | Accepting new patients |
Interoperability endpoints
- william.swearingen@nrh.eclinicaldirectplus.com
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Family Health Center - Dental Centers
- Dental Clinic/Center
- Marshfield, WI
- NPI 1437264140
-
- Family Medicine Physician
- Norman, OK
- NPI 1548398274
-
- General Acute Care Hospital
- Altus, OK
- NPI 1093763781
-
dba Norman Regional
- General Acute Care Hospital
- Norman, OK
- NPI 1700882578
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Marshfield Medical Center - Minocqua
- Rural Acute Care Hospital
- Minocqua, WI
- NPI 1376197665
-
dba Norman Regional
- General Acute Care Hospital
- Norman, OK
- NPI 1700882578
-
- Home Health Agency
- Tulsa, OK
- NPI 1558130773
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153267200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1765324800000",
"number": "1336168236",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1307 N SAINT JOSEPH AVE",
"city": "MARSHFIELD",
"state": "WI",
"postal_code": "544491340",
"telephone_number": "715-221-5600"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5110N W HWY 51",
"city": "MERCER",
"state": "WI",
"postal_code": "545478919",
"telephone_number": "888-652-5033"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SWEARINGEN",
"first_name": "WILLIAM",
"middle_name": "T",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-19",
"last_updated": "2025-12-10",
"certification_date": "2025-12-10",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "OK",
"license": "3993",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "WI",
"license": "13210-321",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mercer, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 2025; 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.