NPPES file of Aug 9, 2026

Keith N. Byler, D. O.

Family Medicine Physician · Wood River, IL

Keith N. Byler, D. O. is a family medicine physician with a practice address in Wood River, Illinois, and NPI 1508981929, issued on Mar 21, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1508981929
Name
Keith N. Byler
Credential
D. O.
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
325 Madison Ave, Wood River, IL 62095
Phone
(618) 251-5202
Enumerated
Mar 21, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(618) 251-5118
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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Also registered at 325 Madison Ave

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

  1. Bob Burris, M.D.Family Medicine Physician1487779849
  2. George Dirkers, M.D.Internal Medicine Physician1598880908

Verify Keith N. Byler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois license search

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99% fewer Medicare Part D claims than the average family medicine physician in 2024

20 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Keith Byler20
  2. Specialty average3,544

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.

2 family medicine physician records list a practice address in Wood River

They are 2 of the 78 NPPES records with a practice address in Wood River, and 6,215 family medicine physician records in Illinois.

Other family medicine physician records in Illinois

  1. Jon Aagaard, MDWheaton, IL1750496923
  2. Napoleon Abando, MDWoodstock, IL1003972753
  3. Nikka Abaricia, MDChicago, IL1790366342
  4. Mohemmed AbbasChicago, IL1609612522
  5. Muhammad AbbasAlton, IL1588341556
  6. Syed AbbasWest Dundee, IL1972733103
  7. Stefanie AbbottMaywood, IL1861137457
  8. Roann Abdeladl, MDEvanston, IL1437087103
  9. Ahmed Abdelkader, MDChicago, IL1659104230
  10. Guy Abderholden, MDAntioch, IL1902899792

Common questions

What is Keith N. Byler, D. O.'s NPI number?

Keith N. Byler, D. O.'s National Provider Identifier (NPI) is 1508981929, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Keith N. Byler, D. O. located?

The NPPES record lists a practice address at 325 Madison Ave, Wood River, IL, 62095. Phone: (618) 251-5202. Providers update this record themselves, so call before visiting.

How can I verify Keith N. Byler, D. O.'s license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Keith N. Byler, D. O. prescribe under Medicare Part D?

In 2024, Keith N. Byler, D. O. had 20 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.