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

Internal Medicine

Vivian I. Chao, MD

Sees patients in Wheat Ridge, CO · Colorado

Summary

Dr. Vivian I. Chao, MD is an internal medicine doctor at 4803 Ward Rd, Kaiser Permanente Wheat Ridge Med, Wheat Ridge, CO 80033. Phone: (303) 338-4545. Accepts Medicare assignment. NPI 1093845935. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4803 Ward Rd, Kaiser Permanente Wheat Ridge Med, Wheat Ridge, CO 80033 · Directions
  • Phone: (303) 338‑4545
  • Medicare: Accepts Medicare assignment
  • Group practice: Colorado Permanente Medical Group PC
  • Medical school: University Of Wisconsin School Of Medicine · graduated 2000 (26 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Vivian I. Chao, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Vivian I. Chao accept Medicare assignment?
Yes. Medicare's clinician data says Vivian I. Chao accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Vivian I. Chao's NPI number?
1093845935. 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 Vivian I. Chao is enrolled with Medicare (CMS data updated October 2, 2026).

  • 4803 Ward Rd, Kaiser Permanente Wheat Ridge MedWheat Ridge, CO 80033 (303) 338‑4545

Group practices

Medicare enrollment lists Vivian I. Chao as a member of this group (CMS data updated October 2, 2026).

  • Colorado Permanente Medical Group PC1,327 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Wheat Ridge

Clinicians with the same Medicare primary specialty in Wheat Ridge, CO — not a recommendation.

All internal medicine doctors in Wheat Ridge →

Other clinicians in Colorado Permanente Medical Group PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093845935
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 October 2, 2026, retrieved October 29, 2026
  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