Provider Profile

Mark J. Den Hartog, DC

Unclaimed Profile

About Dr. Den Hartog

Mark J. Den Hartog, DC is a chiropractor practicing in Eugene, OR. Mark trained at Northwestern College of Chiropractic, graduating in 1992.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.

Education & Training

Specialty

Chiropractor (Primary)
Chiropractor (Additional)

Credentials & Licensing

OR license6485
WA license60741817
NPI1023081155
NPI issued02/09/2006

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Accepts Medicare assignmentSometimes (reported per claim)
Medicare opt-outNo

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is Dr. Den Hartog?

Dr. Den Hartog is a chiropractor in Eugene, OR. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Dr. Den Hartog's address?

Dr. Den Hartog is listed at 225 E 4Th Ave, Eugene, OR 97401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Dr. Den Hartog?

The number on file is (541) 762-4807. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Den Hartog?

Dr. Den Hartog's National Provider Identifier is 1023081155. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Where did Dr. Den Hartog train?

Dr. Den Hartog attended Northwestern College of Chiropractic, graduating in 1992. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Den Hartog have?

Dr. Den Hartog has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.

CMS public data

Is Dr. Den Hartog's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Den Hartog. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.