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

Mr. John Robert Holttum, MD

Individual provider Child & Adolescent Psychiatry Physician · NPI 1700839891

Mr. John Robert Holttum, MD is a Child & Adolescent Psychiatry Physician in Olympia, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2006
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

324 W Bay Dr NW Ste 214A
Olympia, WA 98502-4926
Phone: (360) 464-9110
Fax: (360) 350-5610
Show map & directions

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

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence MD00031823 (WA)

Record details

NPI number1700839891
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 18, 2006
Last updated in NPPESSeptember 23, 2015
Mailing address324 W Bay Dr Nw, Suite 214a, Olympia, WA 98502-4926