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

Gregory Joseph Martonick, MD

Individual provider Allergy Physician · NPI 1689758195

Gregory Joseph Martonick, MD is an Allergy Physician in Walla Walla, 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

320 W Willow St Ste 6
Walla Walla, WA 99362-2922
Phone: (509) 525-4840
Fax: (509) 529-7355
Show map & directions

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

Specialties & licences

Allergy Physician (primary) Taxonomy 207KA0200X · Licence 252-09-0018690 (WA)

Record details

NPI number1689758195
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 24, 2006
Last updated in NPPESJuly 8, 2007
Mailing addressPo Box 1793, Walla Walla, WA 99362-0351