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

Dr. Mark Clifford Olesen, MD

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1558363184

Dr. Mark Clifford Olesen, MD is a Preventive Medicine/Occupational Environmental Medicine Physician in Behtesda, Maryland. Licensed in California and Virginia. Registered with an NPI since 2005.

Licensed in
CA, VA
In the registry since
2005
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

8901 Wisconsin Avenue National Naval Medical Ctr
Behtesda, MD 20889-5600
Phone: (301) 295-2427
Show map & directions

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

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X (VA)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence GFE53142 (CA)

Record details

NPI number1558363184
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2005
Last updated in NPPESJuly 13, 2026