Doctor profile · Federal record
Dr. Gaojun Gui, MD
Internal Medicine Physician (CMS: Internal Medicine) · Marshfield, WI
- NPI 1568570828
- Accepts Medicare
- MIPS 76.2 / 100 · 2023
- 44 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1000 N Oak Ave
Marshfield, WI 54449
(715) 387-5537
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- November 17, 2022
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #43339
- Medicaid
- WI #34085600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568570828. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,599
Distinct HCPCS
9
Medicare allowed
$126,079
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,229 | 97 | $76 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 97 | 75 | $78 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 72 | 17 | $47 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 65 | 56 | $93 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 53 | 52 | $137 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 26 | 17 | $114 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 20 | $124 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 19 | 17 | $63 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 16 | 16 | $125 |
In context: peer comparison
Among 14 peers in Marshfield Internal Medicine Physician, average services per provider: 82. This provider delivers 20× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,432
Patients
698
Total drug cost
$34,751
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 417 | 120 | $4,833 |
| Lisinopril | Generic | 235 | 66 | $1,684 |
| Amlodipine Besylate | Generic | 204 | 60 | $1,556 |
| Omeprazole | Generic | 183 | 56 | $2,063 |
| Levothyroxine Sodium | Generic | 182 | 48 | $2,593 |
| Hydrochlorothiazide | Generic | 164 | 46 | $758 |
| Metoprolol Tartrate | Generic | 159 | 50 | $1,295 |
| Simvastatin | Generic | 152 | 44 | $1,191 |
| Metformin Hcl | Generic | 134 | 44 | $1,355 |
| Losartan Potassium | Generic | 111 | 36 | $1,453 |
Hospital affiliations
Frequently asked questions
What is Dr. Gaojun Gui's medical specialty?
Dr. Gaojun Gui practices Internal Medicine Physician in Marshfield, WI.
Where does Dr. Gaojun Gui practice?
Dr. Gaojun Gui practices at 1000 N Oak Ave, Marshfield, WI 54449. Office phone: 7153875537.
What is Dr. Gaojun Gui's NPI?
Dr. Gaojun Gui's National Provider Identifier (NPI) is 1568570828, issued by NPPES.
Does Dr. Gaojun Gui accept Medicare assignment?
Yes. Dr. Gaojun Gui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gaojun Gui commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.