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Emergency Medicine

Iliana Gutierrez, MD

Works at hospitals in Glendora, CA · Covina, CA · California

Summary

Dr. Iliana Gutierrez, MD is an emergency medicine doctor at 1115 S Sunset Ave, West Covina, CA 91790. Phone: (626) 962-4011. Accepts Medicare assignment. In 2024, Iliana Gutierrez had 496 Original Medicare patients and 832 services. NPI 1891312112. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Iliana Gutierrez, 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 Iliana Gutierrez accept Medicare assignment?
Yes. Medicare's clinician data says Iliana Gutierrez 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 Iliana Gutierrez see?
In 2024, CMS data shows 496 Original Medicare patients and 832 services for Iliana Gutierrez. This counts Original Medicare only and measures volume, not quality.
What is Iliana Gutierrez's NPI number?
1891312112. 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 Iliana Gutierrez, 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 patients496
Services billed to Medicare832
Different services or procedures27
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)318 services
  2. Emergency department visit with high level of medical decision making (99285)297 services
  3. Emergency department visit with moderate level of medical decision making (99284)84 services
  4. Critical care, first 30-74 minutes (99291)78 services
  5. Emergent insertion of breathing tube into windpipe using an endoscope (31500)15 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 cholesterol75%
  • Diabetes62%
  • Arthritis54%
  • Chronic kidney disease49%
  • Ischemic heart disease46%

Hospitals where Iliana Gutierrez works

Medicare's Facility Affiliation Data lists Iliana Gutierrez 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 Iliana Gutierrez is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Iliana Gutierrez as a member of this group (CMS data updated October 2, 2026).

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in West Covina

Clinicians with the same Medicare primary specialty in West Covina, CA — not a recommendation.

All emergency medicine doctors in West Covina →

Other clinicians in Cep America - California

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

Clinician information

CredentialMD
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891312112
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