Skip to main content

Dr. James L. Gajewski, MD

Internal Medicine (Internal Medicine Physician)

At a glance

In the NPI registry since
2005

Licensed in California since 1986, 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. 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

  • 2005Registered 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

  • Internal Medicine Physician primary
    WA license MD61306843 (first issued 2022; active) · CA license G57111 (first issued 1986; current) · CO license DR.00717741
  • Hematology & Oncology Physician
    CA license G57111 (first issued 1986; current) · CO license DR.0071741 (first issued 2023; active) · OR license MD27403 · TX license J3475 (first issued 1993; active) · WA license MD.61306843 (first issued 2022; active) · WA license MD61306843 (first issued 2022; active)

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

Map: Internal Medicine per capita by county →

Other Internal Medicine clinicians in Joint Base Lewis Mcchord

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 5, 2025), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1356349112. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.