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

Internal Medicine

Lorene K. Siaw, MD

Sees patients in Wailuku, HI · Hawaii

Summary

Lorene K. Siaw, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Wailuku, HI. NPI 1417002510. 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 Lorene K. Siaw, 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
34Years since medical school (graduated 1992)
FemaleGender (as listed)
Maui Medical Group IncGroup practice

Quick answers

Where does Lorene K. Siaw see patients?
Medicare's clinician data lists 1 practice location in Wailuku, HI. Call before your visit to confirm the address.
What is Lorene K. Siaw's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Lorene K. Siaw accept Medicare assignment?
Yes. Medicare's clinician data says Lorene K. Siaw 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 Lorene K. Siaw?
(808) 242-9056, as listed in official Medicare / NPI Registry data.
What is Lorene K. Siaw's NPI number?
1417002510. 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 Lorene K. Siaw is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Lorene K. Siaw as a member of this group (CMS data updated 2026-10-02).

  • Maui Medical Group Inc67 clinicians in the group

Specialties

Find other Internal Medicine doctors in Hawaii →

Other internal medicine doctors in Wailuku

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

All internal medicine doctors in Wailuku →

Clinician information

CredentialMD
Graduation year1992
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417002510
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