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

Dr. Marco R De Groot, MD, PHD

Individual provider Hematology & Oncology Physician · NPI 1700139060

Dr. Marco R De Groot, MD, PHD is a Hematology & Oncology Physician in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2012.

Licensed in
WA
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

825 Eastlake Ave E
Seattle, WA 98109-4405
Phone: (206) 288-6956
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 60316103 (WA)

Record details

NPI number1700139060
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedOctober 23, 2012
Last updated in NPPESOctober 23, 2012
Mailing address825 Eastlake Ave E, Seattle, WA 98109-4405

Other providers in Seattle