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DR. HAROLD MICHAEL OLSON IV D.C.
NPI 1679871909
Chiropractor in Bigfork, MN

Active since March 10, 2011Accepts Medicare Assignment
258 PINE TREE DRIVE, BIGFORK, MN 56628(218) 743-3559 Get Directions Write a Review

NPPES record last updated: March 10, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Harold Michael Olson Iv D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. HAROLD MICHAEL OLSON IV D.C. (NPI 1679871909) is an individual chiropractor in Bigfork, Minnesota, licensed in Minnesota (5501) and active in the NPI registry since March 2011. He is affiliated with Bigfork Valley Hospital and is a graduate of Palmer College Chiropractic - West Sunnyvale (2011).

NPPES Registry Identity

NPI1679871909
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. HAROLD MICHAEL OLSON IVCredential: D.C.
Location Address258 PINE TREE DRIVEBigfork, MN 56628
Mailing Address30132 E Mallard Point RdGrand Rapids, MN 55744-6332 · (701) 318-1465
Phone(218) 743-3559
Sole ProprietorNo
Medical School CMSPalmer College Chiropractic - West SunnyvaleGraduated 2011
Enumeration DateMarch 10, 2011
✔ NPI 1679871909 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in MN · 5501
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
258 PINE TREE DRIVE, Bigfork, MN 56628
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Harold Michael Olson Iv D.c. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456536846
PECOS Enrollment IDI20110428000604

Medicare Billing Reassignment

Medicare enrollment records show Harold Olson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northern Itasca Hospital District
Same address
Critical Access
258 PINE TREE DRIVE
Bigfork, MN 56628
  • Reassigned Medicare billing, Minnesota enrollment
  • 23 clinicians in this Medicare group
NPI 1851335525 (218) 743-3177

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 3-4 spinal regions 98941
Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.
142 services29 patients
Chiropractic manipulative treatment, 1-2 spinal regions 98940
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.
29 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Bigfork Valley Hospital

Critical Access Hospitals · Bigfork, MN
OwnershipGovernment - Hospital District or Authority
CMS Certification Number241316
Location258 Pine Tree DriveBigfork, MN 56628 · Itasca County
Emergency services

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NORTHERN ITASCA HOSPITAL DISTRICT
Medicare Defined Swing Bed Unit
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-3177
NORTHERN ITASCA HOSPITAL DISTRICT
Lodging
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-3177
NORTHERN ITASCA HOSPITAL DISTRICT
Assisted Living Facility
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-3177
DR. SARA ANN ELIOFF PHARMD, RPH
Pharmacist
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-4225
NRS ARIZONA, PA
Radiology (Diagnostic Radiology)
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-4444
NORTHERN ITASCA HOSPITAL DISTRICT
Pharmacy (Community/Retail Pharmacy)
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-4444
DR. JESSE LANE PHARM.D.
Pharmacist
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-4225
NORTHERN ITASCA HOSPITAL DISTRICT
Clinic/Center (Adult Day Care)
258 PINE TREE DRIVE
BIGFORK, MN 56628
Itasca County (218) 743-3177

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold Olson's NPI number?

The NPI number for Harold Olson is 1679871909. It was assigned to this individual provider in the NPPES registry on March 10, 2011.

Where is Harold Olson located?

Harold Olson practices at 258 Pine Tree Drive, Bigfork, MN 56628. The listed phone number is (218) 743-3559.

What is Harold Olson's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Harold Olson enrolled in Medicare?

Yes. Harold Olson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Harold Olson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Harold Olson reassigns Medicare benefits to Northern Itasca Hospital District (Bigfork, MN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Harold Olson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Harold Olson accept?

Health plans from HealthPartners and Sanford Health Plan list Harold Olson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Harold Olson affiliated with any hospitals?

According to CMS data, Harold Olson is affiliated with Bigfork Valley Hospital.

When was this NPI record last updated?

The NPPES record for Harold Olson was last updated on March 10, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.