NPPES file of Aug 9, 2026

Margaret Mary Mertens, D.C.

Rehabilitation Chiropractor · Marshfield, WI

Margaret Mary Mertens, D.C. is a rehabilitation chiropractor with a practice address in Marshfield, Wisconsin, and NPI 1225253628, issued on Apr 13, 2007. Check the license (Wisconsin 2195-012, as entered in NPPES) with the Wisconsin 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
1225253628
Name
Margaret Mary Mertens
Credential
D.C.
Primary taxonomy
Rehabilitation Chiropractor 111NR0400X
License number
2195-012 WI
Self-reported in NPPES; status is on the state search
Practice location
106 S Chestnut Ave, Marshfield, WI 54449
Phone
(715) 384-9064
Enumerated
Apr 13, 2007
Record last updated
May 24, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(715) 387-6954
Medicare enrollment
Enrolled (PECOS I20040331000756); may accept Medicare assignment
Medical or professional school
Palmer College Chiropractic - Davenport, 1986
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 106 S Chestnut Ave

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

  1. Will Schlinsog, D.C.Chiropractor1750540019

Verify Margaret Mary Mertens in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2195-012
    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
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Margaret Mary Mertens among 14 rehabilitation chiropractor records in Wisconsin

Margaret Mary Mertens, D.C. is one of 14 rehabilitation chiropractor records with a practice address in Wisconsin. 21% 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 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileNo · 21% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Record last updated2019 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111NR0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rehabilitation Chiropractor providers in Wisconsin

There are 14 rehabilitation chiropractor records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 rehabilitation chiropractor records with the nearest ZIP codes

  1. Sandi Seiler, DCGreen Bay, WI 543131750920021
  2. Colton BellomaLa Crosse, WI 546011326918392
  3. Matthew Schwab, DCEau Claire, WI 547011033269394
  4. Roy Ostenson, D.C.Appleton, WI 549141235299751
  5. Antonio Lopez, DCAppleton, WI 549151164291415
  6. David Heitmann, D.C., M.S.Madison, WI 537141235301490
  7. Rachael RobertsVerona, WI 535931013858919
  8. Caitlin Schmidt, LMTJanesville, WI 535481376970483

Common questions

What is Margaret Mary Mertens, D.C.'s NPI number?

Margaret Mary Mertens, D.C.'s National Provider Identifier (NPI) is 1225253628, issued on Apr 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Mary Mertens, D.C. located?

The NPPES record lists a practice address at 106 S Chestnut Ave, Marshfield, WI, 54449. Phone: (715) 384-9064. Providers update this record themselves, so call before visiting.

How can I verify Margaret Mary Mertens, D.C.'s license?

NPPES lists Wisconsin license number 2195-012, as entered by the provider. Search the Wisconsin 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.