Internal Medicine, Critical Care Medicine
Dr. JACOB COLLEN M.D.
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1528164704 · enumerated 2006-09-15 · record updated 2025-03-19. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Addresses and phones
- Mailing address 6201 GREENLEIGH AVE, BALTIMORE, MD, 21220-2004 (240) 439-8812 Google Maps Apple Maps OpenStreetMap
- Practice location 5255 LOUGHBORO RD NW, WASHINGTON, DC, 20016-2633 (410) 955-5000 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine, Pulmonary Disease 207RP1001X · License D79963 MD
- Internal Medicine, Critical Care Medicine 207RC0200X · Primary · License MD500002488 DC
In this directory
DC District of Columbia Washington Internal Medicine, Critical Care Medicine
Locations and evidence
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Practice location
WASHINGTON, DC, 200162633
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.