Quick answers
- Which hospitals does Alexander R. Chang work at?
- Medicare's official clinician data lists Alexander R. Chang at 3 hospitals: Geisinger Medical Center, Geisinger Wyoming Valley Medical Center and Geisinger-Bloomsburg Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexander R. Chang see patients?
- Medicare's clinician data lists 1 practice location in Danville, PA. Call before your visit to confirm the address.
- What is Alexander R. Chang's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Alexander R. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander R. 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.
- Does Alexander R. Chang offer telehealth?
- Medicare's clinician data says Alexander R. Chang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alexander R. Chang?
- (570) 271-6541, as listed in official Medicare / NPI Registry data.
- What is Alexander R. Chang's NPI number?
- 1407016967. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexander R. Chang works
Medicare's Facility Affiliation Data lists Alexander R. Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Geisinger Medical CenterDanville, PA · Acute Care Hospital · CCN 390006
- Geisinger Wyoming Valley Medical CenterWilkes-Barre, PA · Acute Care Hospital · CCN 390270
- Geisinger-Bloomsburg HospitalBloomsburg, PA · Acute Care Hospital · CCN 390003
Practice locations
Addresses where Alexander R. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 N Academy AveDanville, PA 17822 (570) 271‑6541
Group practices
Medicare enrollment lists Alexander R. Chang as a member of this group (CMS data updated 2026-10-02).
- Geisinger Clinic3,467 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Danville
Clinicians with the same Medicare primary specialty in Danville, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1407016967 |
| 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