NPPES file of Aug 9, 2026

William Eric Kobler, MD

Family Medicine Physician · Rockford, IL

William Eric Kobler, MD is a family medicine physician with a practice address in Rockford, Illinois, and NPI 1588693626, issued on Jul 1, 2006. Check the license (Illinois 036051442, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1588693626
Name
William Eric Kobler
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036051442 IL
Self-reported in NPPES; status is on the state search
Practice location
6830 Villagreen VW, Rockford, IL 61107
Phone
(815) 282-1339
Enumerated
Jul 1, 2006
Record last updated
Feb 21, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(815) 282-1298
Medicaid ID
036051442 IL
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 6830 Villagreen VW

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

  1. Wendy Demler, APNNurse Practitioner1023533122
  2. Christine Larson, PAPhysician Assistant1285668723
  3. Mark Schneider, MDInternal Medicine Physician1265464895
  4. Ellissa Schwartz, PHYSICIAN ASSISTANTPhysician Assistant1003029224
  5. Diane Zug, MDFamily Medicine Physician1578596227

Verify William Eric Kobler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036051442
    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 Illinois 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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William Eric Kobler among 6,215 family medicine physician records in Illinois

William Eric Kobler, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileNo · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2012 · 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 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

145 family medicine physician records list a practice address in Rockford

They are 145 of the 3,893 NPPES records with a practice address in Rockford, and 6,215 family medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Diana Alanis, MDRockford, IL 611071922007418
  2. Joy Deleoz, MDRockford, IL 611071083697171
  3. Steven Diamond, MDRockford, IL 611071861481244
  4. Chantal Girod, MDRockford, IL 611071881620383
  5. John Holtan, MDRockford, IL 611071831127224
  6. Steven Lidvall, MDRockford, IL 611071013946649
  7. Arpana Mathur, MDRockford, IL 611071023090560
  8. Syed Mohiuddin, MDRockford, IL 611071144216243

Common questions

What is William Eric Kobler, MD's NPI number?

William Eric Kobler, MD's National Provider Identifier (NPI) is 1588693626, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Eric Kobler, MD located?

The NPPES record lists a practice address at 6830 Villagreen VW, Rockford, IL, 61107. Phone: (815) 282-1339. Providers update this record themselves, so call before visiting.

How can I verify William Eric Kobler, MD's license?

NPPES lists Illinois license number 036051442, as entered by the provider. 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.

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.

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.