Quick answers
- Which hospitals does Alan G. Chang work at?
- Medicare's official clinician data lists Alan G. Chang at 1 hospital: Aspirus Stevens Point Hospital & Clinics, Inc.. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alan G. Chang see patients?
- Medicare's clinician data lists 4 practice locations, including Rhinelander, WI and Stevens Point, WI. Call before your visit to confirm the address.
- What is Alan G. Chang's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Alan G. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Alan G. Chang 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 Alan G. Chang?
- (715) 344-1600, as listed in official Medicare / NPI Registry data.
- What is Alan G. Chang's NPI number?
- 1255398285. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alan G. Chang works
Medicare's Facility Affiliation Data lists Alan G. Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Stevens Point Hospital & Clinics, Inc.Stevens Point, WI · Acute Care Hospital · CCN 520002
Practice locations
Addresses where Alan G. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 2251 N Shore DrRhinelander, WI 54501
- 2251 N Shore Dr, Suite 100Rhinelander, WI 54501
- 824 Illinois AveStevens Point, WI 54481 (715) 344‑1600
- 900 Illinois AveStevens Point, WI 54481 (715) 346‑5000
Group practices
Medicare enrollment lists Alan G. Chang as a member of this group (CMS data updated 2026-10-02).
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Hawaii John A. Burns School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255398285 |
| 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