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Dr. William G. Douglas, MD

General Practice (General Practice Physician)

  • Medicare participating

At a glance

Years since graduation
52
In the NPI registry since
2009
Medicare patients seen, 2024
57

Licensed in California since 1981, according to the Medical Board of California. 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

  • 1974Medical school: Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
  • 2009Registered 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

  • General Practice Physician primary
    CA license G46175 (first issued 1981; current)

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

Map: General Practice per capita by county →

Where they work

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
57
Services billed
92
Patients’ average age
72

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 General Practice clinicians in Sacramento

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 12, 2022), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1477793727. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.