Antoun Toubaji, MD

Medicare activity in 2024

Official CMS public-use data for Antoun Toubaji, 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.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,200 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)571 services
3. Pathology examination of tissue using a microscope, moderately high complexity (88307)248 services
4. Special stained specimen slides to examine tissue, initial procedure (88342)228 services
5. Pathology examination of tissue using a microscope, moderately low complexity (88304)148 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 cholesterol75%
• High blood pressure73%
• Arthritis53%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)41%
• Ischemic heart disease28%
• Diabetes25%

Hospitals where Antoun Toubaji works

Medicare's Facility Affiliation Data lists Antoun Toubaji 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.

• Sibley Memorial HospitalWashington, DC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 090005

Practice locations

Addresses where Antoun Toubaji is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

• 5255 Loughboro Rd NW, Sibley Memorial HospWashington, DC 20016 (202) 537‑4000
• 5255 Loughboro Road NW, Sibley Memorial HospitalWashington, DC 20016 (202) 660‑6500
• 5755 Cedar LnColumbia, MD 21044
• 5759 Cedar LnColumbia, MD 21044
• 600 N Wolf StBaltimore, MD 21287

Group practices

Medicare enrollment lists Antoun Toubaji as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University713 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in District of Columbia →

Other pathologists in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

• Martin Ongkeko, MD
• Ling Yan, MD
• Emily Sloan, MD
• Shabnam Samankan, MD
• Sarah Karram, MD
• Deepty Bhansali, MD
• Martha M. Quezado, MD
• Robert Jones, MD

All pathologists in Washington →

Other clinicians in Johns Hopkins University

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

• Rodney Omron, MD
• James H. Clark, MD
• Paige M. Griffith, NP
• Bessemagborndip Enoweyere, CNA
• Janet Record, MD
• Umasuthan Srikumaran, 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