Hanna Gruzynska, DDS
Dentist · Downers Grove, IL
Hanna Gruzynska, DDS is a dentist with a practice address in Downers Grove, Illinois, and NPI 1922447309, issued on Jun 19, 2013. Check the license (Illinois 019030199, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hanna Gruzynska
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 019030199 IL
0401414002 VA
Self-reported in NPPES; status is on the state search - Practice location
- 5155 Mochel Dr, Downers Grove, IL 60515
- Phone
- (630) 968-1544
- Enumerated
- Jun 19, 2013
- Record last updated
- Nov 10, 2015 (not updated in 11 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 →
Also registered at 5155 Mochel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Kats, DDSGeneral Practice Dentistry1891903761
Verify Hanna Gruzynska in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019030199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average dentist in 2024
26 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.
Most prescribed
- Amoxicillin18 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.
Hanna Gruzynska among 4,522 dentist records in Illinois
Hanna Gruzynska, 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 2013, is newer than 58% of them.
- NPI issued2013 · 58% of these records are older, 38% 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 updated2015 · 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).
56 dentist records list a practice address in Downers Grove
They are 56 of the 1,899 NPPES records with a practice address in Downers Grove, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Downers Grove → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Sara Banuelos, D.D.SDowners Grove, IL 605151164542429
- Keith Bram, D.D.S.Downers Grove, IL 605151609088418
- William Brennan, DDSDowners Grove, IL 605151235142746
- William Brennan, D.D.S.Downers Grove, IL 605151265501175
- John Keenan, DDSDowners Grove, IL 605151124233218
- Theresa Lao, D.D.S.Downers Grove, IL 605151275684367
- John Maffeo, DDSDowners Grove, IL 605151598834475
- Richard Patelski, DDS MAGDDowners Grove, IL 605151417166968
Common questions
What is Hanna Gruzynska, DDS's NPI number?
Hanna Gruzynska, DDS's National Provider Identifier (NPI) is 1922447309, issued on Jun 19, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Hanna Gruzynska, DDS located?
The NPPES record lists a practice address at 5155 Mochel Dr, Downers Grove, IL, 60515. Phone: (630) 968-1544. Providers update this record themselves, so call before visiting.
How can I verify Hanna Gruzynska, DDS's license?
NPPES lists Illinois license number 019030199, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Hanna Gruzynska, DDS prescribe under Medicare Part D?
In 2024, Hanna Gruzynska, DDS had 26 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.