Quick answers
- Which hospitals does John K. Choi work at?
- Medicare's official clinician data lists John K. Choi at 2 hospitals: SSM Health St Agnes Hospital-Fond Du Lac and Waupun Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John K. Choi see patients?
- Medicare's clinician data lists 7 practice locations, including Beaver Dam, WI, Mayville, WI and Fond Du Lac, WI. Call before your visit to confirm the address.
- What is John K. Choi's specialty?
- Medicare lists Pain Management as the primary specialty, and also Anesthesiology.
- Does John K. Choi accept Medicare assignment?
- Yes. Medicare's clinician data says John K. Choi 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 John K. Choi?
- (920) 887-3102, as listed in official Medicare / NPI Registry data.
- What is John K. Choi's NPI number?
- 1679557151. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John K. Choi works
Medicare's Facility Affiliation Data lists John K. Choi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- SSM Health St Agnes Hospital-Fond Du LacFond Du Lac, WI · Acute Care Hospital · CCN 520088
- Waupun Memorial HospitalWaupun, WI · Critical Access Hospital · CCN 521327
Practice locations
Addresses where John K. Choi is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 130 Corporate DrBeaver Dam, WI 53916 (920) 887‑3102
- 360 S Mountin DrMayville, WI 53050 (920) 387‑2111
- 420 E Division StFond Du Lac, WI 54935 (920) 923‑7400
- 421 Camelot DrFond Du Lac, WI 54935 (920) 926‑8616
- 430 E Division StFond Du Lac, WI 54935 (920) 929‑2300
Group practices
Medicare enrollment lists John K. Choi as a member of this group (CMS data updated 2026-10-02).
- Agnesian Healthcare Inc388 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679557151 |
| 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