John Barry Tillis, D.M.D.
Dentist · Rockford, IL
John Barry Tillis, D.M.D. is a dentist with a practice address in Rockford, Illinois, and NPI 1790728236, issued on Jun 13, 2006. Check the license (Illinois 019-019019783, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Barry Tillis
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- 019-019019783 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7117 Crimson Ridge Dr, Rockford, IL 61107
- Phone
- (815) 395-0327
- Enumerated
- Jun 13, 2006
- Record last updated
- Aug 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Verify John Barry Tillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019-019019783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average dentist in 2024
32 Medicare Part D claims for 26 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin26 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.
John Barry Tillis among 4,522 dentist records in Illinois
John Barry Tillis, D.M.D. is one of 4,522 dentist records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 81% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 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 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
70 dentist records list a practice address in Rockford
They are 70 of the 3,893 NPPES records with a practice address in Rockford, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Rockford → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Jonathan Abiera, DMDRockford, IL 611071831347830
- Bogdan Busan, DDSRockford, IL 611071285951004
- Jason Carlson, D.M.D.Rockford, IL 611071437533643
- Richard Deppe, DDSRockford, IL 611071205023231
- Brandon Hull, D.M.D., M.S.Rockford, IL 611071225209562
- David Naff, D.D.S.Rockford, IL 611071275680514
- Saseelan Sivagnanam, BDSRockford, IL 611071013290170
- Brian Soltys, D.D.S.Rockford, IL 611071578776423
Common questions
What is John Barry Tillis, D.M.D.'s NPI number?
John Barry Tillis, D.M.D.'s National Provider Identifier (NPI) is 1790728236, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Barry Tillis, D.M.D. located?
The NPPES record lists a practice address at 7117 Crimson Ridge Dr, Rockford, IL, 61107. Phone: (815) 395-0327. Providers update this record themselves, so call before visiting.
How can I verify John Barry Tillis, D.M.D.'s license?
NPPES lists Illinois license number 019-019019783, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does John Barry Tillis, D.M.D. prescribe under Medicare Part D?
In 2024, John Barry Tillis, D.M.D. had 32 Medicare Part D claims for 26 beneficiaries; the average among dentist prescribers was 86. 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.