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

Medical Oncology

Kristen B. Vaios, MD

Works at hospitals in Durham, NC · North Carolina

Summary

Dr. Kristen B. Vaios, MD is an oncologist at 20 Duke Medicine Cir, Durham, NC 27710. Phone: (919) 684-8111. Accepts Medicare assignment. In 2024, Kristen B. Vaios had 40 Original Medicare patients and 129 services. NPI 1053843441. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Oncologist (Medicare lists Medical Oncology)
  • Address: 20 Duke Medicine Cir, Durham, NC 27710 · Directions
  • Phone: (919) 684‑8111
  • Medicare: Accepts Medicare assignment
  • Hospital: Duke University Hospital
  • Group practice: Duke Health Integrated Practice, Inc
  • Medical school: Duke University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kristen B. Vaios, 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 Kristen B. Vaios accept Medicare assignment?
Yes. Medicare's clinician data says Kristen B. Vaios 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.
How many Medicare patients does Kristen B. Vaios see?
In 2024, CMS data shows 40 Original Medicare patients and 129 services for Kristen B. Vaios. This counts Original Medicare only and measures volume, not quality.
What is Kristen B. Vaios's NPI number?
1053843441. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kristen B. Vaios, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients40
Services billed to Medicare129
Different services or procedures11
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)55 services
  2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure55%
  • Arthritis45%
  • Depression33%
  • Anxiety30%
  • Ischemic heart disease28%

Hospitals where Kristen B. Vaios works

Medicare's Facility Affiliation Data lists Kristen B. Vaios at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Kristen B. Vaios is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kristen B. Vaios as a member of this group (CMS data updated October 2, 2026).

  • Duke Health Integrated Practice, Inc3,185 clinicians in the group

Specialties

Find other Medical Oncology doctors in North Carolina →

Other oncologists in Durham

Clinicians with the same Medicare primary specialty in Durham, NC — not a recommendation.

All oncologists in Durham →

Other clinicians in Duke Health Integrated Practice, Inc

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

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053843441
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians