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Dr. Alan Wei

Internal Medicine (Internal Medicine Physician)

11234 Anderson St, Gme Office Westerly Suite C
Loma Linda, CA 92354

Who else practices at this address →

San Bernardino County includes primary care (5% of residents) and mental health (26% of residents) shortage areas. About shortage areas

Call (909) 558-4174

  • Medicare participating

At a glance

Years since graduation
13
In the NPI registry since
2013
Medicare patients seen, 2024
191

Licensed in California since 2015, 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

  • 2013Registered 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

  • Internal Medicine Physician primary
    CA license A135747 (first issued 2015; current)
  • Pediatrics Physician
    CA license A135747 (first issued 2015; current)

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

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
191
Services billed
637
Patients’ average age
67
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes12327
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes12276
Hospital discharge day management, more than 30 minutes2525
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes2323
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes1616

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 $23.07 in total to this clinician.

By company
Pfizer Inc.$23.07
By type
Food and Beverage$23.07

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 California →

Other Internal Medicine clinicians in Loma Linda

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 21, 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 1760825517. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.