Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Khaldoun M. Al Rayess, MD

Works at hospitals in Brigham City, UT · Logan, UT · Ogden, UT · Utah

Summary

Dr. Khaldoun M. Al Rayess, MD is an internal medicine doctor at 2121 N 1700, Layton, UT 84041. Phone: (801) 773-4840. Accepts Medicare assignment. In 2024, Khaldoun M. Al Rayess had 331 Original Medicare patients and 5,334 services. NPI 1003808122. 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 Khaldoun M. Al Rayess, 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 Khaldoun M. Al Rayess accept Medicare assignment?
Yes. Medicare's clinician data says Khaldoun M. Al Rayess 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 Khaldoun M. Al Rayess see?
In 2024, CMS data shows 331 Original Medicare patients and 5,334 services for Khaldoun M. Al Rayess. This counts Original Medicare only and measures volume, not quality.
What is Khaldoun M. Al Rayess's NPI number?
1003808122. 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 Khaldoun M. Al Rayess, 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 patients331
Services billed to Medicare5,334
Different services or procedures75
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,080 services
  2. Insertion of needle into vein for collection of blood sample (36415)481 services
  3. Blood test, comprehensive group of blood chemicals (80053)427 services
  4. Blood test, thyroid stimulating hormone (tsh) (84443)296 services
  5. Hemoglobin a1c level (83036)294 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 pressure73%
  • High cholesterol72%
  • Diabetes48%
  • Arthritis44%
  • Chronic kidney disease40%
  • Osteoporosis32%

Hospitals where Khaldoun M. Al Rayess works

Medicare's Facility Affiliation Data lists Khaldoun M. Al Rayess 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 Khaldoun M. Al Rayess is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Khaldoun M. Al Rayess as a member of this group (CMS data updated October 2, 2026).

  • Tanner Memorial Clinic245 clinicians in the group

Specialties

Find other Internal Medicine doctors in Utah →

Other internal medicine doctors in Layton

Clinicians with the same Medicare primary specialty in Layton, UT — not a recommendation.

All internal medicine doctors in Layton →

Other clinicians in Tanner Memorial Clinic

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1003808122
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