Doctor profile · Federal record
Dr. William Swearingen, DO
Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Mercer, WI
- NPI 1336168236
- Accepts Medicare
- MIPS 89.6 / 100 · 2023
- 25 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5110N W Hwy 51
Mercer, WI 545478919
(888) 652-5033 - Mailing address
-
1307 N Saint Joseph Ave
Marshfield, WI 544491340
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 10, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- Wisconsin #13210-321 · Oklahoma #3993
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336168236. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
102
Distinct HCPCS
3
Medicare allowed
$12,161
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 74 | 50 | $119 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 15 | 13 | $85 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $158 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 34. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$78
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 1 | $31.01 | |
| PFIZER INC. | 2 | $29.11 | |
| Xeris Pharmaceuticals, Inc. | 1 | $17.92 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
33
Patients
0
Total drug cost
$932
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 11 | 0 | $187 |
| Duloxetine Hcl | Generic | 11 | 0 | $600 |
| Lisinopril | Generic | 11 | 0 | $144 |
Hospital affiliations
Frequently asked questions
What is Dr. William Swearingen's medical specialty?
Dr. William Swearingen practices Family Medicine Physician in Mercer, WI.
Where does Dr. William Swearingen practice?
Dr. William Swearingen practices at 5110N W Hwy 51, Mercer, WI 545478919. Office phone: 8886525033.
What is Dr. William Swearingen's NPI?
Dr. William Swearingen's National Provider Identifier (NPI) is 1336168236, issued by NPPES.
Does Dr. William Swearingen accept Medicare assignment?
Yes. Dr. William Swearingen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Swearingen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.