Potomac Internists, PC in Washington, DC
This organization bills under NPI 1124319116, an organization record issued on Apr 25, 2011 with the primary taxonomy Internal Medicine Physician. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1124319116
- Legal name
- Potomac Internists, PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 5215 LOUGHBORO RD NW SUITE 440, Washington, DC 20016
- Phone
- 202-237-2910
- Enumerated
- Apr 25, 2011
- Record updated
- May 18, 2021
- Authorized official
- President (title as filed)
4 clinicians CMS lists with Potomac Internists in Washington
- Timothy Arling, MDInternal Medicine Physician1588930234
- Bassem Khalil, MDInternal Medicine Physician1619268018
- Theodore Li, MDInternal Medicine Physician1891857082
- John Tabacco, MDInternal Medicine Physician1437443330
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the District of Columbia secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.