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Pathology

Mario W. Saab-Chalhoub, MD

Works at hospitals in Austin, TX · Lewes, DE · Hamilton, TX · Texas, Delaware

Summary

Dr. Mario W. Saab-Chalhoub, MD is a pathologist at 3445 Executive Ctr Dr, Suite 250, Austin, TX 78731. Phone: (512) 579-4000. Accepts Medicare assignment. In 2024, Mario W. Saab-Chalhoub had 865 Original Medicare patients and 1,923 services. NPI 1407207897. 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 Mario W. Saab-Chalhoub, 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 Mario W. Saab-Chalhoub accept Medicare assignment?
Yes. Medicare's clinician data says Mario W. Saab-Chalhoub 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 Mario W. Saab-Chalhoub see?
In 2024, CMS data shows 865 Original Medicare patients and 1,923 services for Mario W. Saab-Chalhoub. This counts Original Medicare only and measures volume, not quality.
What is Mario W. Saab-Chalhoub's NPI number?
1407207897. 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 Mario W. Saab-Chalhoub, 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 patients865
Services billed to Medicare1,923
Different services or procedures23
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)897 services
  2. Cell examination of specimen, selective cellular enhancement technique (88112)201 services
  3. Special stained specimen slides to examine tissue, each additional procedure (88341)150 services
  4. Special stained specimen slides to examine tissue, initial procedure (88342)127 services
  5. Evaluation of fine needle aspirate with interpretation and report (88173)116 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 cholesterol72%
  • High blood pressure70%
  • Arthritis41%
  • Chronic kidney disease31%
  • Ischemic heart disease28%
  • Diabetes27%

Hospitals where Mario W. Saab-Chalhoub works

Medicare's Facility Affiliation Data lists Mario W. Saab-Chalhoub 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 Mario W. Saab-Chalhoub is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mario W. Saab-Chalhoub as a member of this group (CMS data updated October 2, 2026).

  • Hurt, Jacknow, Moore, Connor, Wells, Michels, Yurco, Listrom and Huang53 clinicians in the group

Specialties

Find other Pathology doctors in Texas →

Other pathologists in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

All pathologists in Austin →

Other clinicians in Hurt, Jacknow, Moore, Connor, Wells, Michels, Yurco, Listrom and Huang

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

Clinician information

CredentialMD
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1407207897
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