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Dr. William Sharfman, M.D.

Medical Oncology (Medical Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
44
In the NPI registry since
2006
Medicare patients seen, 2024
558

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

  • 1982Medical school: University of Toledo College of Medicine
  • 2006Registered 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
    MD license D38409

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
558
Services billed
326,675
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, nivolumab, 1 mg83,82037
Injection, cemiplimab-rwlc, 1 mg45,50017
Injection, daratumumab, 10 mg and hyaluronidase-fihj26,82013
Injection, nivolumab and relatlimab-rmbw, 3 mg/1 mg23,68024
Injection, pembrolizumab, 1 mg23,40022
Injection, fosaprepitant, 1 mg6,75014
Injection, ipilimumab, 1 mg6,15012
Injection, ondansetron hydrochloride, per 1 mg2,52830
Injection, dexamethasone sodium phosphate, 1 mg1,29822
Administration of chemotherapy into vein, 1 hour or less862118

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 $20.86 in total to this clinician.

By company
Gilead Sciences, Inc.$20.86
By type
Food and Beverage$20.86

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 Maryland →

Industry-funded research

Named as a principal investigator on 12 industry-funded studies in 2025, from 5 companies. The companies reported $871,699 in research payments for these studies, mostly to the institutions running them.

  • A Phase 3, Randomized, Double-Blind, Placebo- and Active-Comparator Controlled Clinical study of Adjuvant V940 mRNA-4157 Plus Pembrolizumab Versus Adjuvant Placebo Plus Pembrolizumab in Participants With High-Risk Sta…
    Merck Sharp & Dohme LLC
  • A Randomised, Open-Label, Phase 2 Study of Ceralasertib Monotherapy and Ceralasertib plus Durvalumab in Patients with Unresectable or Advanced Melanoma and Primary or Secondary Resistance to PD-(L)1 Inhibition
    AstraZeneca UK Limited
  • A Phase 1,2 Open-Label Rolling-Arm Umbrella Platform Design of Investigational Agents With or Without Pembrolizumab or Pembrolizumab Alone in Participants with Melanoma KEYMAKER-U02# Substudy 02A
    Merck Sharp & Dohme LLC
  • Adjuvant Therapy with Pembrolizumab versus Placebo in Resected High Risk Stage II Melanoma# A Randomized, Double-blind Phase III Study KEYNOTE 716
    Merck Sharp & Dohme LLC
  • A Phase 1/2 Study of BMS-986253 in Combination with Nivolumab or Nivolumab plus Ipilimumab in Advanced Cancers
    E.r. Squibb & Sons, L.l.c.
  • A Phase 1/2a Dose Escalation and Cohort Expansion Study of the Safety, Tolerability, and Efficacy of Anti-LAG-3 Monoclonal Antibody (BMS-986016) Administered Alone and in Combination with Anti-PD-1 Monoclonal Antibody…
    E.r. Squibb & Sons, L.l.c.
  • A Randomized, Double-Blind Phase 2/3 Study of Relatlimab Combined with Nivolumab versus Nivolumab in Participants with Previously Untreated Metastatic or Unresectable Melanoma
    E.r. Squibb & Sons, L.l.c.
  • IOV-EAP-402
    Iovance Biotherapeutics, Inc.
  • Study name not reported
    Organon Llc
  • A Phase 1,2 Open-Label Rolling-Arm Umbrella Platform Design of Investigational Agents With or Without Pembrolizumab or Pembrolizumab Alone in Participants with Melanoma KEYMAKER-U02# Substudy 02B
    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 Lutherville

Sources

NPI registry (CMS NPPES, November 2026; record last updated February 18, 2013), 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 1760413652. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.