Konstantina Kalas, OD
Optometrist · Downers Grove, IL
Konstantina Kalas, OD is an optometrist with a practice address in Downers Grove, Illinois, and NPI 1831750652, issued on Jun 24, 2019. Check the license (Illinois 046011421, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Konstantina Kalas
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 046011421 IL
18004170A IN
Self-reported in NPPES; status is on the state search - Practice location
- 3450 Lacey RD, Downers Grove, IL 60515
- Phone
- (630) 743-4500
- Enumerated
- Jun 24, 2019
- Record last updated
- Oct 20, 2022
- Fax
- (630) 743-4537
- Medicare enrollment
- Enrolled (PECOS I20210125000616); accepts Medicare assignment
- Medical or professional school
- Indiana University - School Of Optometry, 2020
- Entity
- Type 1 · individual
Also registered at 3450 Lacey RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren AbousslemanGeneral Practice Dentistry1184440406
- Aarlan Aceto, ODOptometrist1013064385
- Aatifa Ahmed, CCC-SLP/LSpeech-Language Pathologist1770201378
- John Anderson, DDSDentist1134680101
- Dawn Arnashus, DDSGeneral Practice Dentistry1316166192
- Carrie Arroyo, MA CCC SLPSpeech-Language Pathologist1285799064
Verify Konstantina Kalas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 046011421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average optometrist in 2024
15 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $602.27
11 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
Bills Medicare through one group practice
- Midwestern UniversityDowners Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
71 optometrist records list a practice address in Downers Grove
They are 71 of the 1,899 NPPES records with a practice address in Downers Grove, and 2,697 optometrist records in Illinois.
All 71 in Downers Grove → All 2,697 in Illinois → Every provider in Downers Grove →
Other optometrist records in Illinois
- Marvin Aal, O.D.Chicago, IL1184634180
- Russul Abbas, ODGurnee, IL1285129007
- Sarah Abbott, ODPark Ridge, IL1881333565
- Mahmud Abdallah, ODAlsip, IL1417501248
- Nada AbdallahDeerfield, IL1669206066
- Saul Abraham, O.D.Mt Prospect, IL1285772400
- Aarlan Aceto, ODDowners Grove, IL1013064385
- Jodi Acharya, O.D.Arlington Heights, IL1982769469
- Treacy Adamo, O.D.Hinsdale, IL1043395254
- Carla Adams, O.D.St Charles, IL1720199409
Common questions
What is Konstantina Kalas, OD's NPI number?
Konstantina Kalas, OD's National Provider Identifier (NPI) is 1831750652, issued on Jun 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Konstantina Kalas, OD located?
The NPPES record lists a practice address at 3450 Lacey RD, Downers Grove, IL, 60515. Phone: (630) 743-4500. Providers update this record themselves, so call before visiting.
How can I verify Konstantina Kalas, OD's license?
NPPES lists Illinois license number 046011421, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Konstantina Kalas, OD prescribe under Medicare Part D?
In 2024, Konstantina Kalas, OD had 15 Medicare Part D claims; the average among optometrist prescribers was 277. 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.