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Dr. Patrick M. Dillon, MD

Medical Oncology (Medical Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
22
In the NPI registry since
2007
Medicare patients seen, 2024
231

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2004Medical school: University of North Dakota School of Medicine
  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Medical Oncology Physician primary
    VA license 0101247810
  • Hematology & Oncology Physician
    VA license 0101247810

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Medical Oncology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
231
Services billed
637
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes247136
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes8127
Established patient office or other outpatient visit, 40-54 minutes6531
Established patient office or other outpatient visit, 20-29 minutes5651
New patient office or other outpatient visit, 60-74 minutes4040
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes1818
Hospital discharge day management, 30 minutes or less1212

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 1 companies reported 1 payments worth $78.80 in total to this clinician.

By company
Lilly USA, LLC$78.80
By type
Food and Beverage$78.80

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Virginia →

Industry-funded research

Named as a principal investigator on 7 industry-funded studies in 2025, from 5 companies. The companies reported $210,366 in research payments for these studies, mostly to the institutions running them.

  • A Phase III, Open-label, Randomised Study of Datopotamab Deruxtecan (Dato-DXd) With or Without Durvalumab Compared with Investigators Choice of Chemotherapy (Paclitaxel, Nab-paclitaxel or Gemcitabine + Carboplatin) in…
    AstraZeneca Pharmaceuticals LP
  • A Phase 3 Open-label Randomised Study of Datopotamab Deruxtecan (Dato DXd) Versus Investigators Choice of Chemotherapy in Patients who are not Candidates for PD 1/PD L1 Inhibitor Therapy in First-line Locally Recurren…
    AstraZeneca Pharmaceuticals LP
  • A phase 3 randomized openlabel multicenter trial of ARV471 PF07850327 vs fulvestrant in participants with estrogen receptorpositive HER2NEGATIVE advanced breast cancer whose disease progressed after prior endocrine ba…
    Pfizer Inc.
  • EMERALD: Phase 3 Trial of Elacestrant vs. Standard of Care for the Treatment of Patients With ER+/HER2- Advanced Breast Cancer (EMERALD)
    Stemline Therapeutics Inc.
  • A Study of Trastuzumab Deruxtecan (T-DXd) Versus Trastuzumab Emtansine (T-DM1) in High-risk HER2-positive Participants With Residual Invasive Breast Cancer Following Neoadjuvant Therapy (DESTINY-Breast05)
    Daiichi Sankyo Inc. · Active, not recruiting · NCT04622319
  • Phase 12A dose escalation finding and expansion study evaluating safety tolerability pharmacokinetics pharmacodynamics and anti tumor activity of PF07104091 as a single agent and in combination therapy
    Pfizer Inc.
  • A Phase III, Randomized, Double-blind Study to Evaluate Pembrolizumab plus Chemotherapy vs Placebo plus Chemotherapy as Neoadjuvant Therapy and Pembrolizumab vs Placebo as Adjuvant Therapy for Triple Negative Breast C…
    Merck Sharp & Dohme LLC

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Medical Oncology clinicians in Charlottesville

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 19, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1952502718. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.