NPPES file of Aug 9, 2026

Keith Allen Brennan, D.C.

Chiropractor · Clinton Twp, MI

Keith Allen Brennan, D.C. is a chiropractor with a practice address in Clinton Twp, Michigan, and NPI 1144535287, issued on Aug 12, 2010. Check the license (Michigan 2301009708, 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
1144535287
Name
Keith Allen Brennan
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
2301009708 MI
Self-reported in NPPES; status is on the state search
Practice location
43740 Garfield RD, Clinton Twp, MI 48038
Phone
(586) 228-0270
Enumerated
Aug 12, 2010
Record last updated
Mar 25, 2026
Fax
(586) 228-9019
Medicare enrollment
Enrolled (PECOS I20120417000728); accepts Medicare assignment
Medical or professional school
Sherman College Of Straight Chiropractic, 2010
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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8 nearest chiropractor records → All 3,058 in Michigan → Look up another NPI →

Also registered at 43740 Garfield RD

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

  1. Holly Alderman, PA-CPhysician Assistant1093112542
  2. Hemlata Amin, MDGeneral Practice Physician1649271941
  3. Fiona Gallagher-Conner, DCChiropractor1023738721
  4. Jennifer Hudson, DCChiropractor1306141700
  5. Julie MargitishPhysical Therapist1326226846
  6. Elizabeth Oberly-Ball, PA-CPhysician Assistant1649873886

Verify Keith Allen Brennan 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 2301009708    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. Total Health Systems IncClinton Township, MI

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

Keith Allen Brennan among 3,058 chiropractor records in Michigan

Keith Allen Brennan, 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 2010, is newer than 62% of them.

  • NPI issued2010 · 62% of these records are older, 36% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2010 · median 2005 among the 1,743 with a school on file
  • Record last updated2026 · 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).

13 chiropractor records list a practice address in Clinton Twp

They are 13 of the 955 NPPES records with a practice address in Clinton Twp, and 3,058 chiropractor records in Michigan.

All 3,058 in Michigan → Every provider in Clinton Twp → Chiropractor nationwide →

The 8 chiropractor records with the nearest ZIP codes

  1. Donald Bretz, DCClinton Township, MI 480381356361877
  2. Jeffrey Conn, D.C.Clinton Twp, MI 480381780715995
  3. Derek Elwart, DCClinton Township, MI 480381932435690
  4. Darrell Gruber, D.C.Clinton Township, MI 480381568586097
  5. David Guzzardo, D.C.Clinton Township, MI 480381891724787
  6. Aaron Lundgaard, DCClinton Township, MI 480381942201835
  7. Jeffrey Mattar, D.C.Clinton Township, MI 480381659301919
  8. Maria Miaritis, DCClinton Township, MI 480381891980629

Common questions

What is Keith Allen Brennan, D.C.'s NPI number?

Keith Allen Brennan, D.C.'s National Provider Identifier (NPI) is 1144535287, issued on Aug 12, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Keith Allen Brennan, D.C. located?

The NPPES record lists a practice address at 43740 Garfield RD, Clinton Twp, MI, 48038. Phone: (586) 228-0270. Providers update this record themselves, so call before visiting.

How can I verify Keith Allen Brennan, D.C.'s license?

NPPES lists Michigan license number 2301009708, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.