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Dr. William C. Mcgarity JR., M.D.

Internal Medicine (Internal Medicine Physician)

  • Medicare participating

At a glance

Years since graduation
47
In the NPI registry since
2006
Medicare patients seen, 2024
74

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

  • 1979Medical school: Emory University School 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

  • Internal Medicine Physician primary
    GA license 021747

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

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
74
Services billed
517
Patients’ average age
76
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes19076
Established patient office or other outpatient visit, 20-29 minutes13767
Insertion of needle into vein for collection of blood sample11972
Urinalysis, manual test9964
X-ray of chest, 2 views3836
Complete ultrasound study of arm and leg arteries3216
Injection of drug or substance under skin or into muscle3216
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report3130
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit2929
Ultrasound of both sides of head and neck blood flow1919

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 $32.17 in total to this clinician.

By company
Novo Nordisk Inc$32.17
By type
Food and Beverage$32.17

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 Georgia →

Other Internal Medicine clinicians in Decatur

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 3, 2020), 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 1922016237. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.