NPPES file of Aug 9, 2026

Jeff Duane Knapp, D.C.

Chiropractor · Hillsdale, MI

Jeff Duane Knapp, D.C. is a chiropractor with a practice address in Hillsdale, Michigan, and NPI 1538325014, issued on Aug 4, 2008. Check the license (Michigan JK009485, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1538325014
Name
Jeff Duane Knapp
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
JK009485 MI
Self-reported in NPPES; status is on the state search
Practice location
1384 Vera Dr, Hillsdale, MI 49242
Phone
(517) 437-4767
Enumerated
Aug 4, 2008
Record last updated
May 23, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(517) 437-0567
Medicare enrollment
Enrolled (PECOS I20080812000780); accepts Medicare assignment
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 1384 Vera Dr

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

  1. David Knapp, D.C.Sports Physician Chiropractor1124024971
  2. Jeffrey Kovacic, D.C.Chiropractor1821094699
  3. Daniel Painter, D.C.Chiropractor1013231554

Verify Jeff Duane Knapp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license JK009485
    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 Michigan 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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Bills Medicare through one group practice

  1. Knapp Chiropractic Center PLLCHillsdale, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jeff Duane Knapp among 3,058 chiropractor records in Michigan

Jeff Duane Knapp, D.C. is one of 3,058 chiropractor records with a practice address in Michigan. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.

  • NPI issued2008 · 55% of these records are older, 41% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2008 · median 2005 among the 1,743 with a school on file
  • Record last updated2011 · 74% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 chiropractor records list a practice address in Hillsdale

They are 11 of the 276 NPPES records with a practice address in Hillsdale, and 3,058 chiropractor records in Michigan.

The 8 chiropractor records with the nearest ZIP codes

  1. James Daniels, DCHillsdale, MI 492421295701902
  2. Jenelle Devenney, DCHillsdale, MI 492421093318040
  3. Matthew Gordon, D.C. , M.S.Hillsdale, MI 492421447544820
  4. Sasha Griffis, DCHillsdale, MI 492421508815523
  5. Kurt Knapp, D.C.Hillsdale, MI 492421326327131
  6. Jeffrey Kovacic, D.C.Hillsdale, MI 492421821094699
  7. Daniel Painter, D.C.Hillsdale, MI 492421013231554
  8. Heath Taylor, D.CHillsdale, MI 492421760177075

Common questions

What is Jeff Duane Knapp, D.C.'s NPI number?

Jeff Duane Knapp, D.C.'s National Provider Identifier (NPI) is 1538325014, issued on Aug 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jeff Duane Knapp, D.C. located?

The NPPES record lists a practice address at 1384 Vera Dr, Hillsdale, MI, 49242. Phone: (517) 437-4767. Providers update this record themselves, so call before visiting.

How can I verify Jeff Duane Knapp, D.C.'s license?

NPPES lists Michigan license number JK009485, as entered by the provider. Search the Michigan 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. Medicare files from data.cms.gov. 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.