Iwona Stefania Iwaszczyszyn, DDS
Dentist · Mt Prospect, IL
Iwona Stefania Iwaszczyszyn, DDS is a dentist with a practice address in Mt Prospect, Illinois, and NPI 1922211507, issued on May 8, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Iwona Stefania Iwaszczyszyn
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 259 E Rand RD, Mt Prospect, IL 60056
- Phone
- (847) 890-4444
- Enumerated
- May 8, 2007
- Record last updated
- Jul 8, 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 Iwona Stefania Iwaszczyszyn 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
Industry payments in 2024: $27.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Philips North America LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Iwona Stefania Iwaszczyszyn among 4,522 dentist records in Illinois
Iwona Stefania Iwaszczyszyn, DDS 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).
15 dentist records list a practice address in Mt Prospect
They are 15 of the 215 NPPES records with a practice address in Mt Prospect, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Mt Prospect → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Aram Aivazian, DDSMt Prospect, IL 600561306835517
- Berjouhi (betty) Aivazian, D.D.S.Mt Prospect, IL 600561205825411
- Ninos Awraham, D.D.S.Mount Prospect, IL 600561881842045
- Rita Benjamin, DDSMt Prospect, IL 600561912072695
- Sumita BhargavaMt Prospect, IL 600561366629784
- David Bohm, DDSMount Prospect, IL 600561295801181
- Jason Cheng, DDSMount Prospect, IL 600561255509600
- August Durso, D.D.S.Mount Prospect, IL 600561568558989
Common questions
What is Iwona Stefania Iwaszczyszyn, DDS's NPI number?
Iwona Stefania Iwaszczyszyn, DDS's National Provider Identifier (NPI) is 1922211507, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Iwona Stefania Iwaszczyszyn, DDS located?
The NPPES record lists a practice address at 259 E Rand RD, Mt Prospect, IL, 60056. Phone: (847) 890-4444. Providers update this record themselves, so call before visiting.
How can I verify Iwona Stefania Iwaszczyszyn, DDS's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity 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.