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