Ronald C. Ritsert, D.D.S.
Dentist · Oak Brook, IL
Ronald C. Ritsert, D.D.S. is a dentist with a practice address in Oak Brook, Illinois, and NPI 1437367810, issued on May 18, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ronald C. Ritsert
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 120 Oakbrook Ctr, Oak Brook, IL 60523
- Phone
- (630) 573-9573
- Enumerated
- May 18, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (630) 573-5350
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Also registered at 120 Oakbrook Ctr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ann Collier, MDAllergy & Immunology Physician1891863411
- James Gianakakis, D.D.S.,M.S.Endodontics1841522612
- Cecilia Guzman, L.C.P.C.Professional Counselor1649320946
Verify Ronald C. Ritsert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average dentist in 2024
28 Medicare Part D claims for 19 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin12 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.
Ronald C. Ritsert among 4,522 dentist records in Illinois
Ronald C. Ritsert, D.D.S. 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 2007, is newer than 19% of them.
- NPI issued2007 · 19% of these records are older, 62% 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).
19 dentist records list a practice address in Oak Brook
They are 19 of the 950 NPPES records with a practice address in Oak Brook, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Oak Brook → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Mary Egan-Kramer, BSN,DDSOak Brook, IL 605231215155478
- James Griesbach, DDSOak Brook, IL 605231528286796
- Susan Kochlefl, DDSOak Brook, IL 605231356596548
- Peter Lekatsos, D.D.SOak Brook, IL 605231205993292
- Gregory Mondroski, DDSOak Brook, IL 605231255591830
- Alicia Muran, DDSOak Brook, IL 605231821251711
- John Nathan, DDS MDSOak Brook, IL 605231760529754
- Vasilios Panos, DDSOak Brook, IL 605231164859161
Common questions
What is Ronald C. Ritsert, D.D.S.'s NPI number?
Ronald C. Ritsert, D.D.S.'s National Provider Identifier (NPI) is 1437367810, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald C. Ritsert, D.D.S. located?
The NPPES record lists a practice address at 120 Oakbrook Ctr, Oak Brook, IL, 60523. Phone: (630) 573-9573. Providers update this record themselves, so call before visiting.
How can I verify Ronald C. Ritsert, D.D.S.'s license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Ronald C. Ritsert, D.D.S. prescribe under Medicare Part D?
In 2024, Ronald C. Ritsert, D.D.S. had 28 Medicare Part D claims for 19 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.