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Emergency Medicine

Christopher Fernandez Del Riego, MD

Sees patients in San Diego, CA · California

Summary

Dr. Christopher Fernandez Del Riego, MD is an emergency medicine doctor at 300 Fir St, San Diego, CA 92101. Phone: (848) 499-2600. Accepts Medicare assignment. In 2024, Christopher Fernandez Del Riego had 192 Original Medicare patients and 344 services. NPI 1063446763. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 300 Fir St, San Diego, CA 92101 · Directions
  • Phone: (848) 499‑2600
  • Medicare: Accepts Medicare assignment
  • Group practice: Sharp Rees-Stealy Medical Group Inc
  • Medical school: Tulane University School Of Medicine · graduated 2002 (24 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Christopher Fernandez Del Riego, 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 Christopher Fernandez Del Riego accept Medicare assignment?
Yes. Medicare's clinician data says Christopher Fernandez Del Riego 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 Christopher Fernandez Del Riego see?
In 2024, CMS data shows 192 Original Medicare patients and 344 services for Christopher Fernandez Del Riego. This counts Original Medicare only and measures volume, not quality.
What is Christopher Fernandez Del Riego's NPI number?
1063446763. 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 Christopher Fernandez Del Riego, 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 patients192
Services billed to Medicare344
Different services or procedures28
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)178 services
  2. Detection test by immunoassay with direct visual observation for influenza virus (87804)24 services
  3. Insertion of needle into vein for collection of blood sample (36415)21 services
  4. Automated urinalysis test (81003)15 services
  5. Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)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 pressure63%
  • High cholesterol61%
  • Arthritis41%
  • Diabetes26%
  • Anxiety26%
  • Depression23%

Practice locations

Addresses where Christopher Fernandez Del Riego is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Christopher Fernandez Del Riego as a member of this group (CMS data updated October 2, 2026).

  • Sharp Rees-Stealy Medical Group Inc884 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 Sharp Rees-Stealy Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolTulane University School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063446763
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians