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Diagnostic Radiology

Antonio J. Gutierrez, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · California

Summary

Dr. Antonio J. Gutierrez, MD is a radiologist at 100 Medical Plaza, Los Angeles, CA 90095. Phone: (310) 301-6800. Accepts Medicare assignment. In 2024, Antonio J. Gutierrez had 608 Original Medicare patients and 26,995 services. NPI 1396917688. 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 Antonio J. 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 Antonio J. Gutierrez accept Medicare assignment?
Yes. Medicare's clinician data says Antonio J. 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 Antonio J. Gutierrez see?
In 2024, CMS data shows 608 Original Medicare patients and 26,995 services for Antonio J. Gutierrez. This counts Original Medicare only and measures volume, not quality.
What is Antonio J. Gutierrez's NPI number?
1396917688. 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 Antonio J. 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 patients608
Services billed to Medicare26,995
Different services or procedures18
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)24,257 services
  2. Nuclear medicine study from skull base to mid-thigh with ct scan (78815)477 services
  3. Ct scan of chest with contrast (71260)427 services
  4. Ct scan of abdomen and pelvis with contrast (74177)415 services
  5. Piflufolastat f-18, diagnostic, 1 millicurie (A9595)350 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 cholesterol75%
  • High blood pressure72%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)72%
  • Arthritis48%
  • Ischemic heart disease36%
  • Diabetes28%

Hospitals where Antonio J. Gutierrez works

Medicare's Facility Affiliation Data lists Antonio J. 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 Antonio J. Gutierrez is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 13; the Medicare profile lists all.

Group practices

Medicare enrollment lists Antonio J. Gutierrez as a member of these groups (CMS data updated October 2, 2026).

  • UCLA Radiology Medical Group202 clinicians in the group
  • Regents of the University of California12 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All radiologists in Los Angeles →

Other clinicians in UCLA Radiology Medical Group

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

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1396917688
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