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Dr. Edwin A. Diaz, M.D.

Urology (Urology Physician)

  • Medicare participating

At a glance

Years since graduation
30
In the NPI registry since
2006
Medicare patients seen, 2024
1,245

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

  • Urology Physician primary
    AR license E4076

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

Map: Urology 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
1,245
Services billed
11,479
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Bcg live intravesical instillation, 1 mg2,93131
Automated urinalysis test1,014767
Insertion of needle into vein for collection of blood sample723597
Established patient office or other outpatient visit, 30-39 minutes526418
Blood creatinine level507476
Psa (prostate specific antigen) measurement, total473376
Complete ultrasound scan behind abdominal cavity332275
Ultrasound measurement of bladder capacity after voiding259232
New patient office or other outpatient visit, 45-59 minutes243243
Established patient office or other outpatient visit, 20-29 minutes194186

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, 3 companies reported 7 payments worth $184 in total to this clinician.

By company
Teleflex LLC$138
Novartis Pharmaceuticals Corporation$29.29
Olympus America Inc.$16.67
By type
Food and Beverage$184

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 Arkansas →

Other Urology clinicians in North Little Rock

Sources

NPI registry (CMS NPPES, November 2026; record last updated December 5, 2007), 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 1275508939. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.