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Anesthesiology

Alexander Santillan Quiroz, MD

Works at hospitals in Loma Linda, CA · California

Summary

Dr. Alexander Santillan Quiroz, MD is an anesthesiologist at 11234 Anderson St, Loma Linda, CA 92350. Phone: (909) 558-2824. Accepts Medicare assignment. In 2024, Alexander Santillan Quiroz had 215 Original Medicare patients and 297 services. NPI 1720432792. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 11234 Anderson St, Loma Linda, CA 92350 · Directions (3 more locations)
  • Phone: (909) 558‑2824
  • Medicare: Accepts Medicare assignment
  • Hospital: Loma Linda University Medical Center
  • Group practice: Faculty Physicians and Surgeons of Llusm
  • Medical school: University Of Southern California Keck School Of Medicine · graduated 2016 (10 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Alexander Santillan Quiroz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Alexander Santillan Quiroz accept Medicare assignment?
Yes. Medicare's clinician data says Alexander Santillan Quiroz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Alexander Santillan Quiroz see?
In 2024, CMS data shows 215 Original Medicare patients and 297 services for Alexander Santillan Quiroz. This counts Original Medicare only and measures volume, not quality.
What is Alexander Santillan Quiroz's NPI number?
1720432792. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Alexander Santillan Quiroz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients215
Services billed to Medicare297
Different services or procedures70
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Anesthesia for electroshock therapy (00104)59 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)30 services
  3. Insertion of artery tube for blood sampling or infusion through skin (36620)21 services
  4. Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)15 services
  5. Anesthesia for lens surgery (00142)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol68%
  • Arthritis53%
  • Diabetes47%
  • Chronic kidney disease39%
  • Depression34%

Hospitals where Alexander Santillan Quiroz works

Medicare's Facility Affiliation Data lists Alexander Santillan Quiroz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Alexander Santillan Quiroz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alexander Santillan Quiroz as a member of this group (CMS data updated October 2, 2026).

  • Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Loma Linda

Clinicians with the same Medicare primary specialty in Loma Linda, CA — not a recommendation.

All anesthesiologists in Loma Linda →

Other clinicians in Faculty Physicians and Surgeons of Llusm

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720432792
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians