Gaojun Gui, MD
NPI 1568570828 · Internal Medicine Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gaojun Gui, MD is a Internal Medicine Physician provider in Marshfield, WI (NPI 1568570828).
Provider details
- NPI number
- 1568570828
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43339 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,648 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,421 | $73 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 106 | $76 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 40 | $46 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 39 | $110 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 | $121 |
| Telephone Medical Discussion With Physician, 11-20 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 98 | 46 |
| Lisinopril | 67 | 31 |
| Sodium Chloride | 49 | — |
| Simvastatin | 49 | 18 |
| Warfarin Sodium | 47 | 20 |
| Levothyroxine Sodium | 42 | 17 |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 42 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-28
- Last updated
- 2022-11-17
Frequently asked questions
- What is Gaojun Gui's NPI number?
- Gaojun Gui's National Provider Identifier (NPI) is 1568570828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gaojun Gui's specialty?
- Gaojun Gui is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gaojun Gui located?
- Gaojun Gui's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449.
- What is Gaojun Gui's phone number?
- The practice phone number listed in the NPPES registry for Gaojun Gui is (715) 387-5537.
- Does Gaojun Gui accept Medicare?
- Gaojun Gui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gaojun Gui's NPI active?
- Yes — Gaojun Gui's NPI (1568570828) is active in the NPPES registry as of the last update on 2022-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.