Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Aaron B. Schneir, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Aaron B. Schneir, MD is an emergency medicine doctor at 200 W Arbor Dr, San Diego, CA 92103. Phone: (858) 657-7000. Accepts Medicare assignment. In 2024, Aaron B. Schneir had 393 Original Medicare patients and 557 services. NPI 1467495770. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 200 W Arbor Dr, San Diego, CA 92103 · Directions (6 more locations)
  • Phone: (858) 657‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: UC San Diego Health Hillcrest - Hillcrest Medical Center
  • Group practice: Regents of the University of California
  • Medical school: University Of Southern California Keck School Of Medicine · graduated 1996 (30 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Aaron B. Schneir, 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 Aaron B. Schneir accept Medicare assignment?
Yes. Medicare's clinician data says Aaron B. Schneir 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 Aaron B. Schneir see?
In 2024, CMS data shows 393 Original Medicare patients and 557 services for Aaron B. Schneir. This counts Original Medicare only and measures volume, not quality.
What is Aaron B. Schneir's NPI number?
1467495770. 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 Aaron B. Schneir, 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 patients393
Services billed to Medicare557
Different services or procedures53
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)105 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)90 services
  3. Emergency department visit with moderate level of medical decision making (99284)88 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)47 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)36 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 pressure73%
  • High cholesterol73%
  • Arthritis51%
  • Ischemic heart disease33%
  • Depression31%
  • Chronic kidney disease31%

Hospitals where Aaron B. Schneir works

Medicare's Facility Affiliation Data lists Aaron B. Schneir 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 Aaron B. Schneir is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Aaron B. Schneir as a member of this group (CMS data updated October 2, 2026).

  • Regents of the University of California2,089 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in San Diego

Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.

All emergency medicine doctors in San Diego →

Other clinicians in Regents of the University of California

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 year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467495770
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