Quick answers
- Which hospitals does Khai S. Chang work at?
- Medicare's official clinician data lists Khai S. Chang at 1 hospital: AdventHealth Waterman. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Khai S. Chang see patients?
- Medicare's clinician data lists 2 practice locations, including Summerfield, FL and Mount Dora, FL. Call before your visit to confirm the address.
- What is Khai S. Chang's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Khai S. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Khai S. 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 Khai S. Chang?
- (352) 307-9925, as listed in official Medicare / NPI Registry data.
- What is Khai S. Chang's NPI number?
- 1881665222. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Khai S. Chang works
Medicare's Facility Affiliation Data lists Khai S. Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth WatermanTavares, FL · Acute Care Hospital · CCN 100057
Practice locations
Addresses where Khai S. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 10250 SE 167th Place Rd, Unit 5Summerfield, FL 34491 (352) 307‑9925
- 18550 US Hwy 441Mount Dora, FL 32757 (352) 735‑3755
Group practices
Medicare enrollment lists Khai S. Chang as a member of this group (CMS data updated 2026-10-02).
- Lakeview Healthcare System, LLC27 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Summerfield
Clinicians with the same Medicare primary specialty in Summerfield, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881665222 |
| 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