OrganizationActive
Drs. Langevin, Larsen, Hamm & Cohen P.C.
NPI 1922153113 · Critical Care Medicine (Internal Medicine) Physician · Chevy Chase, MD
Provider details
- NPI number
- 1922153113
- Entity type
- Organization
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ylene Larsen, President(301) 656-7374
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
5530 Wisconsin Ave
Suite 930
Chevy Chase, MD 20815-4404
Phone: (301) 656-7374
Fax: (301) 656-1019
Street-level locationGet directions
Mailing address
Po Box 71069
Bethesda, MD 20813-1069
Other names (DBA / former)
- Doing business as
- Chevy Chase Pulmonary Associates
Registry dates
- Enumerated
- 2007-01-25
- Last updated
- 2020-08-22
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.