Skip to main content

Dr. William C. Denney, MD

Internal Medicine (Internal Medicine Physician)

  • Medicare participating

At a glance

Years since graduation
13
In the NPI registry since
2013
Medicare patients seen, 2024
834

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. What an NPI is

Education and training

  • 2013Medical school: University of Mississippi School of Medicine
  • 2013Registered with an NPI (national billing number; not a license date)

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

  • Internal Medicine Physician primary
    VA license 0101260261
  • Pulmonary Disease Physician
    MS license 25081

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

Map: Internal Medicine 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
834
Services billed
4,389
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes1,605408
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes768235
Critical care, first 30-74 minutes675224
Established patient office or other outpatient visit, 30-39 minutes319227
X-ray of chest, 2 views315218
Test to measure expiratory airflow and volume312220
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes286259
Test to determine lung volumes using sensors196181
Test to examine how well the lungs exchange gases196181
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month6913

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, 19 companies reported 120 payments worth $2,387 in total to this clinician.

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 →

Other Internal Medicine clinicians in Richmond

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 17, 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 1366888505. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.