NPPES file of Aug 9, 2026

John F. Quertermus, M.D.

Gastroenterology Physician · Kalamazoo, MI

John F. Quertermus, M.D. is a gastroenterology physician with a practice address in Kalamazoo, Michigan, and NPI 1225015209, issued on Dec 29, 2005. Check the license (Michigan 4301031291, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1225015209
Name
John F. Quertermus
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
4301031291 MI
Self-reported in NPPES; status is on the state search
Practice location
601 John St, Kalamazoo, MI 49007
Phone
(269) 276-0000
Enumerated
Dec 29, 2005
Record last updated
Oct 15, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(269) 276-0001
Medicaid IDs
104436943 MI
1225015209 MI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest gastroenterology physician records → All 550 in Michigan → Look up another NPI →

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 John F. Quertermus 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 4301031291    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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John F. Quertermus among 550 gastroenterology physician records in Michigan

John F. Quertermus, M.D. is one of 550 gastroenterology physician records with a practice address in Michigan. 85% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileNo · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 75% of these records are
  • Record last updated2014 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Michigan

There are 550 gastroenterology physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 550 in Michigan → Every provider in Kalamazoo → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Jerrold Falk, M.D.Kalamazoo, MI 490071063469989
  2. Mark Kocab, MDKalamazoo, MI 490071942271606
  3. Mark McCormick, M.D.Kalamazoo, MI 490071659358661
  4. Eric Sieloff, MDKalamazoo, MI 490071831627322
  5. Victor Velocci, M.D.Kalamazoo, MI 490071700131505
  6. Tooba Tariq, M.D.Battle Creek, MI 490151982054664
  7. Shahid Aziz, DOPortage, MI 490241588616205
  8. Allan Barbish, M.D.Portage, MI 490241891743191

Common questions

What is John F. Quertermus, M.D.'s NPI number?

John F. Quertermus, M.D.'s National Provider Identifier (NPI) is 1225015209, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John F. Quertermus, M.D. located?

The NPPES record lists a practice address at 601 John St, Kalamazoo, MI, 49007. Phone: (269) 276-0000. Providers update this record themselves, so call before visiting.

How can I verify John F. Quertermus, M.D.'s license?

NPPES lists Michigan license number 4301031291, 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.

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.

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.