Quick answers
- Which hospitals does Guangyu Bai work at?
- Medicare's official clinician data lists Guangyu Bai at 2 hospitals: Mercy Health System Corp and Methodist Hospitals Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guangyu Bai see patients?
- Medicare's clinician data lists 2 practice locations, including Janesville, WI and Gary, IN. Call before your visit to confirm the address.
- What is Guangyu Bai's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Guangyu Bai accept Medicare assignment?
- Yes. Medicare's clinician data says Guangyu Bai accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Guangyu Bai?
- (608) 756-6000, as listed in official Medicare / NPI Registry data.
- What is Guangyu Bai's NPI number?
- 1386286474. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guangyu Bai works
Medicare's Facility Affiliation Data lists Guangyu Bai at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · CCN 520066
- Methodist Hospitals IncGary, IN · Acute Care Hospital · CCN 150002
Practice locations
Addresses where Guangyu Bai is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Mineral Point AveJanesville, WI 53548 (608) 756‑6000
- 600 Grant StGary, IN 46402 (219) 886‑4000
Group practices
Medicare enrollment lists Guangyu Bai as a member of these groups (CMS data updated 2026-10-02).
- Cep America LLC1,023 clinicians in the group
- Mercy Health System Corporation753 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Janesville
Clinicians with the same Medicare primary specialty in Janesville, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386286474 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians