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Dr. William R. Fleming, M.D.

Emergency Medicine (Emergency Medicine Physician)

500 N Us Highway 89, Northern Arizona Va Hcs
Prescott, AZ 86313

Who else practices at this address →

Yavapai County includes primary care (56% of residents) and dental (14% of residents) and mental health (50% of residents) shortage areas. About shortage areas

Call (928) 445-4860

  • Medicare participating

At a glance

Years since graduation
37
In the NPI registry since
2006
Medicare patients seen, 2024
50

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

  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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

  • Emergency Medicine Physician primary
    AZ license 22386

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

Map: Emergency 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
50
Services billed
131
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 20-29 minutes117107
Blood test, comprehensive group of blood chemicals6761
Injection, ondansetron hydrochloride, per 1 mg6414
Magnesium level6258
Manual urinalysis test with examination using microscope, automated3835
Injection, ketorolac tromethamine, per 15 mg3820
Injection of additional new drug or substance into vein2615
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less2621
X-ray of chest, 2 views2625
Injection of drug or substance under skin or into muscle2511

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.

Other Emergency Medicine clinicians in Prescott

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 18, 2015), 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 1023052933. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.