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Dr. Aaron Williams, M.D.

Hospitalist (Hospitalist Physician)

  • Medicare participating

At a glance

Years since graduation
9
In the NPI registry since
2017
Medicare patients seen, 2024
317

Licensed in Texas since 2023, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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

  • 2017Registered with an NPI (national billing number; not a license date)

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

  • Hospitalist Physician primary
    TX license U7539 (first issued 2023; active) · LA license 322961
  • Internal Medicine Physician
    LA license 322961 · TX license U7539 (first issued 2023; active)

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

Map: Hospitalist 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
317
Services billed
843
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes343157
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes131126
Hospital discharge day management, more than 30 minutes118117
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes11179
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes1919
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and1313

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.

Other Hospitalist clinicians in Tyler

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 25, 2024), 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 1689107948. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.