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Medical Oncology

Nicole Laslett, DO

Works at hospitals in Newark, DE · Fairfax, VA · Falls Church, VA … · Delaware, Virginia

Summary

Dr. Nicole Laslett, DO is an oncologist at 3580 Joseph Siewick Dr, Fairfax, VA 22033. Phone: (703) 771-2960. Accepts Medicare assignment. In 2024, Nicole Laslett had 256 Original Medicare patients and 550 services. NPI 1154716371. 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: 3580 Joseph Siewick Dr, Fairfax, VA 22033 · Directions (2 more locations)
  • Phone: (703) 771‑2960
  • Medicare: Accepts Medicare assignment
  • Hospitals: Christiana Hospital, Inova Fair Oaks Hospital, Inova Fairfax Hospital and 1 more
  • Group practice: Inova Health Care Services
  • Medical school: Philadelphia College Of Osteopathic Medicine · graduated 2015 (11 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Nicole Laslett, 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 Nicole Laslett accept Medicare assignment?
Yes. Medicare's clinician data says Nicole Laslett 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 Nicole Laslett see?
In 2024, CMS data shows 256 Original Medicare patients and 550 services for Nicole Laslett. This counts Original Medicare only and measures volume, not quality.
What is Nicole Laslett's NPI number?
1154716371. 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 Nicole Laslett, 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 patients256
Services billed to Medicare550
Different services or procedures13
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)323 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)88 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)45 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)31 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)15 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 blood pressure75%
  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Arthritis43%
  • Diabetes37%
  • Chronic kidney disease33%

Hospitals where Nicole Laslett works

Medicare's Facility Affiliation Data lists Nicole Laslett 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 Nicole Laslett is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3580 Joseph Siewick DrFairfax, VA 22033
  • 44045 Rivderside PkwyLeesburg, VA 20176 (703) 771‑2960
  • 8081 Innovation Park DrFairfax, VA 22031

Group practices

Medicare enrollment lists Nicole Laslett as a member of this group (CMS data updated October 2, 2026).

  • Inova Health Care Services1,817 clinicians in the group

Specialties

Find other Medical Oncology doctors in Virginia →

Other oncologists in Fairfax

Clinicians with the same Medicare primary specialty in Fairfax, VA — not a recommendation.

All oncologists in Fairfax →

Other clinicians in Inova Health Care Services

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

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1154716371
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