Nathanial Fernandez, MD

Medicare activity in 2024

Official CMS public-use data for Nathanial Fernandez, 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.

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%
• Diabetes75%
• Ischemic heart disease75%

Hospitals where Nathanial Fernandez works

Medicare's Facility Affiliation Data lists Nathanial Fernandez 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.

• Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050324
• Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050077

Practice locations

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

• 4077 5th AveSan Diego, CA 92103 (619) 294‑8111
• 435 H StChula Vista, CA 91910 (619) 691‑7000

Group practices

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

• Scripps Health Inpatient Providers Medical Group Inc214 clinicians in the group

Specialties

• Vascular Surgeryprimary

Find other Vascular Surgery doctors in California →

Other vascular surgeons in San Diego

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

• Seth M. Krosner, MD
• Sadia Ilyas, MD
• Ann C. Gaffey, MD
• Jack C. Yang, MD
• Bryan Dieffenbach, MD
• Mahmoud Malas, MD
• Kimberly A. Thompson, MD
• Michael J. Sise, MD

All vascular surgeons in San Diego →

Other clinicians in Scripps Health Inpatient Providers Medical Group Inc

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

• Joseph R. Resnikoff, MD
• Patrick Lee, PA
• Lauren C. Vincent, MD
• Anne K. Stewart, MD
• Dina M. Bates, MD
• Erica B. Feldman, MD

Clinician information

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