Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Denis T. Chan, MD

Sees patients in Waipahu, HI · Hawaii

Summary

Denis T. Chan, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Waipahu, HI. NPI 1962614768. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Denis T. Chan, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
60Years since medical school (graduated 1966)
MaleGender (as listed)

Quick answers

Where does Denis T. Chan see patients?
Medicare's clinician data lists 1 practice location in Waipahu, HI. Call before your visit to confirm the address.
What is Denis T. Chan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Denis T. Chan accept Medicare assignment?
Yes. Medicare's clinician data says Denis T. Chan 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 Denis T. Chan's NPI number?
1962614768. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Denis T. Chan is enrolled with Medicare (CMS data updated 2026-10-02).

  • 94 -748 Hikimoe St, Suite BWaipahu, HI 96797

Specialties

Find other Internal Medicine doctors in Hawaii →

Other internal medicine doctors in Waipahu

Clinicians with the same Medicare primary specialty in Waipahu, HI — not a recommendation.

All internal medicine doctors in Waipahu →

Clinician information

CredentialMD
Graduation year1966
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962614768
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians