NPPES file of Aug 9, 2026

Brian Michael Kamer, D.O.

Internal Medicine Physician · Kalamazoo, MI

Brian Michael Kamer, D.O. is an internal medicine physician with a practice address in Kalamazoo, Michigan, and NPI 1124368360, issued on Feb 26, 2013. Check the license (Michigan 5101020440, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124368360
Name
Brian Michael Kamer
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
5101020440 MI
Self-reported in NPPES; status is on the state search
Practice location
601 John St, Kalamazoo, MI 49007
Phone
(269) 341-8481
Enumerated
Feb 26, 2013
Record last updated
Nov 27, 2023
Medicare enrollment
Enrolled (PECOS I20170926000949); 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 601 John St

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

  1. Lawrence Abramson, MDInternal Medicine Physician1467413575
  2. Karina Acevedo, PA-CMedical Physician Assistant1083150460
  3. Autumn AdamsEmergency Medical Services (Emergency Medicine) Physician1609350586
  4. Fadi Ajine, MDRheumatology Physician1275533986
  5. Hussein Akl, MDInternal Medicine Physician1699757849
  6. Kwsai Al-Rahhal, MDSleep Medicine (Internal Medicine) Physician1639159247

Verify Brian Michael Kamer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101020440
    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
Open 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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90% fewer Medicare Part D claims than the average internal medicine physician in 2024

305 Medicare Part D claims for 165 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Brian Kamer305
  2. Specialty average3,176

Most prescribed

  1. Prednisone29 claims
  2. Cefdinir23 claims
  3. Amlodipine Besylate18 claims
  4. Amoxicillin-Clavulanate Potass14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $163.93

9 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Kamer$163.93
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Bronson Methodist HospitalBattle Creek, MI · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Brian Michael Kamer among 5,735 internal medicine physician records in Michigan

Brian Michael Kamer, D.O. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 61% of them.

  • NPI issued2013 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2006 among the 3,564 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

158 internal medicine physician records list a practice address in Kalamazoo

They are 158 of the 6,553 NPPES records with a practice address in Kalamazoo, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Lawrence Abramson, MDKalamazoo, MI 490071467413575
  2. Hussein Akl, MDKalamazoo, MI 490071699757849
  3. Todd Bennett, DOKalamazoo, MI 490071548233562
  4. Owen Berow, MDKalamazoo, MI 490071275526600
  5. James Carter, MDKalamazoo, MI 490071952371411
  6. Kathryn Grossman, MDKalamazoo, MI 490071780658146
  7. Eve Inchardi, MDKalamazoo, MI 490071881664324
  8. Paula Lunde, MDKalamazoo, MI 490071659341121

Common questions

What is Brian Michael Kamer, D.O.'s NPI number?

Brian Michael Kamer, D.O.'s National Provider Identifier (NPI) is 1124368360, issued on Feb 26, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Brian Michael Kamer, D.O. located?

The NPPES record lists a practice address at 601 John St, Kalamazoo, MI, 49007. Phone: (269) 341-8481. Providers update this record themselves, so call before visiting.

How can I verify Brian Michael Kamer, D.O.'s license?

NPPES lists Michigan license number 5101020440, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian Michael Kamer, D.O. prescribe under Medicare Part D?

In 2024, Brian Michael Kamer, D.O. had 305 Medicare Part D claims for 165 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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.