Helene A. Emsellem, Md, PC in Chevy Chase, MD
This organization bills under NPI 1689853756, an organization record issued on Oct 25, 2007 with the primary taxonomy Sleep Disorder Diagnostic Clinic/Center. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1689853756
- Legal name
- Helene A. Emsellem, Md, PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Sleep Disorder Diagnostic Clinic/Center 261QS1200X
- Practice location
- 5454 WISCONSIN AVE STE 1335, Chevy Chase, MD 20815
- Phone
- 301-654-0209
- Enumerated
- Oct 25, 2007
- Record updated
- Mar 5, 2024
- Authorized official
- Cco (title as filed)
3 clinicians CMS lists with Helene A Emsellem Md in Chevy Chase
- Sandra Johnson, FNP-BCFamily Nurse Practitioner1700443199
- Danielle MandirSleep Medicine (Psychiatry & Neurology) Physician1073084638
- Meagan Rizzo, MDInternal Medicine Physician1578658456
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Maryland secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
All taxonomies on this record
- 207RS0012X Sleep Medicine (Internal Medicine) Physician
- 2084N0400X Neurology Physician
- 261QS1200X Sleep Disorder Diagnostic Clinic/Center
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.