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Hospitalist

Fernando A. Del Rey, MD

Works at hospitals in Knoxville, TN · Tennessee

Summary

Dr. Fernando A. Del Rey, MD is a hospitalist at 1924 Alcoa Hwy, Knoxville, TN 37920. Accepts Medicare assignment. In 2024, Fernando A. Del Rey had 180 Original Medicare patients and 649 services. NPI 1851883698. 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: Hospitalist
  • Address: 1924 Alcoa Hwy, Knoxville, TN 37920 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: University Health System, Inc
  • Group practice: University Health System, Inc.
  • Medical school: graduated 2016 (10 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Fernando A. Del Rey, 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 Fernando A. Del Rey accept Medicare assignment?
Yes. Medicare's clinician data says Fernando A. Del Rey 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 Fernando A. Del Rey see?
In 2024, CMS data shows 180 Original Medicare patients and 649 services for Fernando A. Del Rey. This counts Original Medicare only and measures volume, not quality.
What is Fernando A. Del Rey's NPI number?
1851883698. 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 Fernando A. Del Rey, 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 patients180
Services billed to Medicare649
Different services or procedures11
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)270 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)184 services
  3. Hospital discharge day management, more than 30 minutes (99239)100 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)51 services
  5. Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)16 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%
  • Arthritis57%
  • Anxiety51%
  • Chronic kidney disease51%
  • Ischemic heart disease47%

Hospitals where Fernando A. Del Rey works

Medicare's Facility Affiliation Data lists Fernando A. Del Rey 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 Fernando A. Del Rey is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Fernando A. Del Rey as a member of this group (CMS data updated October 2, 2026).

  • University Health System, Inc.522 clinicians in the group

Specialties

Find other Hospitalist doctors in Tennessee →

Other hospitalists in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

All hospitalists in Knoxville →

Other clinicians in University Health System, Inc.

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

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851883698
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