Quick answers
- Does Talal M. Nsouli accept Medicare assignment?
- Medicare's clinician data says Talal M. Nsouli may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Talal M. Nsouli see?
- In 2024, CMS data shows 234 Original Medicare patients and 9,702 services for Talal M. Nsouli. This counts Original Medicare only and measures volume, not quality.
- What is Talal M. Nsouli's NPI number?
- 1639271653. 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 Talal M. Nsouli, 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 | 234 |
|---|---|
| Services billed to Medicare | 9,702 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Test for allergy using allergenic extract (95004)6,060 services
- Professional service for preparation and provision of 1 or more antigens (95165)1,820 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)435 services
- Professional service for multiple injections of allergen (95117)432 services
- Test to measure expiratory airflow and volume (94010)329 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 cholesterol73%
- High blood pressure59%
- Asthma54%
- Arthritis50%
- Diabetes19%
- Ischemic heart disease19%
Practice locations
Addresses where Talal M. Nsouli is enrolled with Medicare (CMS data updated October 2, 2026).
- 2600 Virginia NW Ave, Suite 508Washington, DC 20037 (202) 342‑1984
Specialties
- Allergy/Immunologyprimary
Find other Allergy/Immunology doctors in District of Columbia →
Other allergist and immunologists in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639271653 |
| 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
- 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