IndividualActive
Mark Den Hartog, DC
NPI 1023081155 · Chiropractor · Olympia, WA
Provider details
- NPI number
- 1023081155
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 60741817 (WA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(100/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1018 7th Ave Se
Olympia, WA 98501-1512
Phone: (360) 459-8114
Fax: (360) 493-8742
Street-level locationGet directions
Mailing address
1018 7th Ave Se
Olympia, WA 98501-1512
Additional practice locations (2)
- 114 1/2 E MonroePleasantville, IA 50225-7744Phone: (515) 848-3334Fax: (515) 848-3355
- 114 1/2 E MonroePleasantville, IA 50225-7744Phone: (515) 848-3334Fax: (515) 848-3355
Registry dates
- Enumerated
- 2006-02-09
- Last updated
- 2018-03-17
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.