Peter J. Kotsiopoulos, D.D.S., P.C.
General Practice Dentistry · Palatine, IL
Peter J. Kotsiopoulos, D.D.S., P.C. is a general practice dentistry with a practice address in Palatine, Illinois, and NPI 1801945142, issued on Jan 9, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter J. Kotsiopoulos
- Credential
- D.D.S., P.C.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- Practice location
- 135 W Johnson St, Palatine, IL 60067
- Phone
- (847) 776-1202
- Enumerated
- Jan 9, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 776-1211
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →
Also registered at 135 W Johnson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Konishi, D.D.S.,M.S.D.Orthodontics and Dentofacial Orthopedics Dentistry1104148279
- Paul Nicotra, DDSGeneral Practice Dentistry1831385004
Verify Peter J. Kotsiopoulos 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
3.4 times the Medicare Part D claims of the average general practice dentistry in 2024
283 Medicare Part D claims for 155 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Amoxicillin194 claims
- Clindamycin Hcl39 claims
- Acetaminophen-Codeine30 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.
Peter J. Kotsiopoulos among 5,276 general practice dentistry records in Illinois
Peter J. Kotsiopoulos, D.D.S., P.C. is one of 5,276 general practice dentistry 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 32% of them.
- NPI issued2007 · 32% of these records are older, 43% 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 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 general practice dentistry records list a practice address in Palatine
They are 42 of the 770 NPPES records with a practice address in Palatine, and 5,276 general practice dentistry records in Illinois.
All 5,276 in Illinois → Every provider in Palatine → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Timothy Altman, DDSPalatine, IL 600671356344352
- Nancy Bagel, D.D.S.Palatine, IL 600671114068707
- Hugo Bertagni, DDSPalatine, IL 600671366657520
- Beata Czechura, D.M.D.Palatine, IL 600671487863510
- David Froggatt, DDSPalatine, IL 600671891912150
- Steven Hillesheim, D.D.S.Palatine, IL 600671093892135
- James Kwon, D.D.S.Palatine, IL 600671023008174
- Raymond La Vigne, D.D.S.Palatine, IL 600671619024221
Common questions
What is Peter J. Kotsiopoulos, D.D.S., P.C.'s NPI number?
Peter J. Kotsiopoulos, D.D.S., P.C.'s National Provider Identifier (NPI) is 1801945142, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Peter J. Kotsiopoulos, D.D.S., P.C. located?
The NPPES record lists a practice address at 135 W Johnson St, Palatine, IL, 60067. Phone: (847) 776-1202. Providers update this record themselves, so call before visiting.
How can I verify Peter J. Kotsiopoulos, D.D.S., P.C.'s license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Peter J. Kotsiopoulos, D.D.S., P.C. prescribe under Medicare Part D?
In 2024, Peter J. Kotsiopoulos, D.D.S., P.C. had 283 Medicare Part D claims for 155 beneficiaries; the average among general practice dentistry prescribers was 83. 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.