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

Douglas Alexander Preston, MD, PHD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1831775527

Douglas Alexander Preston, MD, PHD is a Student in an Organized Health Care Education/Training Program in Portland, Oregon. Registered with an NPI since 2021.

In the registry since
2021
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Portland, OR

No coordinates on file. Search this address in Google Maps

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X

Record details

NPI number1831775527
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMarch 22, 2021
Last updated in NPPESMarch 22, 2021
Certification dateMarch 22, 2021

Other providers in Portland