Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Leonard Nai-En Chen, MD

Individual provider Blood Banking & Transfusion Medicine Physician · NPI 1548688336

Dr. Leonard Nai-En Chen, MD is a Pathology in Bethesda, Maryland. Graduated from Georgetown University School of Medicine in 2005, 21 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
21
Trained at
Georgetown University School of Medicine
Licensed in
MD
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

9000 Rockville Pike Bldg 10
Bethesda, MD 20892
Phone: (301) 451-8186
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3800 Reservoir Rd Nw, Washington, DC 20007-2113 — (202) 687-3614

Specialties & licences

Blood Banking & Transfusion Medicine Physician (primary) Taxonomy 207ZB0001X · Licence D0084728 (MD)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence D84728 (MD)

Record details

NPI number1548688336
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2014
Last updated in NPPESJuly 22, 2024
Certification dateJuly 22, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Bethesda