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 patients | 865 |
|---|---|
| Services billed to Medicare | 1,923 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)897 services
- Cell examination of specimen, selective cellular enhancement technique (88112)201 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)150 services
- Special stained specimen slides to examine tissue, initial procedure (88342)127 services
- 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.
- Ascension Seton Medical Center AustinAustin, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450056
- Beebe Medical CenterLewes, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080007
- Dell Seton Medical Center at the University of TXAustin, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 450124
- Hamilton General HospitalHamilton, TX · Critical Access Hospital · Emergency services: listed by Medicare · CCN 451392
- North Austin Medical CenterAustin, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450809
Practice locations
Addresses where Mario W. Saab-Chalhoub is enrolled with Medicare (CMS data updated October 2, 2026).
- 3445 Executive Ctr Dr, Suite 250Austin, TX 78731 (512) 579‑4000
- 424 Savannah RdLewes, DE 19958 (512) 579‑4000
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
- Pathologyprimary
Other pathologists in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
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
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407207897 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians