NPPES file of Aug 9, 2026

Ivan T. Van Eerden, D.C.

Chiropractor · Missoula, MT

Ivan T. Van Eerden, D.C. is a chiropractor with a practice address in Missoula, Montana, and NPI 1801958061, issued on Dec 14, 2006. Check the license (Montana 946, as entered in NPPES) with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801958061
Name
Ivan T. Van Eerden
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
946 MT
Self-reported in NPPES; status is on the state search
Practice location
225 Hickory St, Missoula, MT 59801
Phone
(406) 541-6400
Enumerated
Dec 14, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(406) 728-8467
Medicaid IDs
0165512 MT
0165503 MT
Medicare enrollment
Enrolled (PECOS I20100923000249); accepts Medicare assignment
Medical or professional school
Western States College Of Chiropractic, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 225 Hickory St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Eberwein, LMTMassage Therapist1134352420
  2. Karen Ocwieja, ATCAthletic Trainer1538578554
  3. Traci Rasmusson, D.C.Chiropractor1992859557

Verify Ivan T. Van Eerden in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 946
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Ivan T. Van Eerden among 474 chiropractor records in Montana

Ivan T. Van Eerden, D.C. is one of 474 chiropractor records with a practice address in Montana. 27% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 67% newer
  • In a Medicare fileNo · 27% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2000 · median 2007 among the 267 with a school on file
  • Record last updated2007 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 chiropractor records list a practice address in Missoula

They are 71 of the 3,567 NPPES records with a practice address in Missoula, and 474 chiropractor records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. Susan Anderson, D.C.Missoula, MT 598011427131739
  2. Don Butler, D.C.Missoula, MT 598011962433730
  3. Gregory Chapman, D.C.Missoula, MT 598011366505737
  4. Michael Clark, DCMissoula, MT 598011265530232
  5. Troy Doxey, DCMissoula, MT 598011083686562
  6. Jim Helmer, DCMissoula, MT 598011740261098
  7. Anthony Lambert, D.C.Missoula, MT 598011316956683
  8. Steven Mazur, DCMissoula, MT 598011407913080

Common questions

What is Ivan T. Van Eerden, D.C.'s NPI number?

Ivan T. Van Eerden, D.C.'s National Provider Identifier (NPI) is 1801958061, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ivan T. Van Eerden, D.C. located?

The NPPES record lists a practice address at 225 Hickory St, Missoula, MT, 59801. Phone: (406) 541-6400. Providers update this record themselves, so call before visiting.

How can I verify Ivan T. Van Eerden, D.C.'s license?

NPPES lists Montana license number 946, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.