Doctor profile · Federal record
Dr. Gary Vanoudenhoven, MD
Internal Medicine Physician (CMS: Internal Medicine) · Marshfield, WI
- NPI 1356451504
- Accepts Medicare
- MIPS 76.2 / 100 · 2023
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1000 N Oak Ave
Marshfield, WI 544495703
(715) 387-5511
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 16, 2024
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #32162
- Medicaid
- WI #31720400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356451504. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
228
Distinct HCPCS
6
Medicare allowed
$20,081
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 82 | 79 | $63 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 42 | 22 | $76 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 30 | 30 | $93 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 27 | 27 | $166 | |
99238 |
Hospital discharge day management, 30 minutes or less | 24 | 24 | $77 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 23 | 19 | $114 |
In context: peer comparison
Among 14 peers in Marshfield Internal Medicine Physician, average services per provider: 82. This provider delivers 2.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
304
Patients
56
Total drug cost
$3,117
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 53 | 20 | $510 |
| Omeprazole | Generic | 31 | 0 | $205 |
| Levothyroxine Sodium | Generic | 28 | 12 | $291 |
| Lisinopril | Generic | 25 | 11 | $213 |
| Amlodipine Besylate | Generic | 23 | 13 | $215 |
| Famotidine | Generic | 19 | 0 | $124 |
| Pravastatin Sodium | Generic | 16 | 0 | $160 |
| Ropinirole Hcl | Generic | 16 | 0 | $246 |
| Gabapentin | Generic | 15 | 0 | $557 |
| Metformin Hcl | Generic | 14 | 0 | $115 |
Hospital affiliations
Frequently asked questions
What is Dr. Gary Vanoudenhoven's medical specialty?
Dr. Gary Vanoudenhoven practices Internal Medicine Physician in Marshfield, WI.
Where does Dr. Gary Vanoudenhoven practice?
Dr. Gary Vanoudenhoven practices at 1000 N Oak Ave, Marshfield, WI 544495703. Office phone: 7153875511.
What is Dr. Gary Vanoudenhoven's NPI?
Dr. Gary Vanoudenhoven's National Provider Identifier (NPI) is 1356451504, issued by NPPES.
Does Dr. Gary Vanoudenhoven accept Medicare assignment?
Yes. Dr. Gary Vanoudenhoven accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Vanoudenhoven commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.