Khrystyna Deka, MD
Internal Medicine Physician · Buffalo Grove, IL
Khrystyna Deka, MD is an internal medicine physician with a practice address in Buffalo Grove, Illinois, and NPI 1053051110, issued on Mar 29, 2022. Check the license (Illinois 036-175316, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Khrystyna Deka
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-175316 IL
Self-reported in NPPES; status is on the state search - Practice location
- 650 W Lake Cook RD, Buffalo Grove, IL 60089
- Phone
- (847) 459-1160
- Enumerated
- Mar 29, 2022
- Record last updated
- Aug 25, 2025
- Fax
- (847) 459-8692
- Medicare enrollment
- Enrolled (PECOS I20250723003996); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 650 W Lake Cook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Khrystyna Deka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-175316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
46 Medicare Part D claims for 29 beneficiaries, against an average of 3,176 among the 108,855 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.
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationBuffalo Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Khrystyna Deka among 7,238 internal medicine physician records in Illinois
Khrystyna Deka, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.
- NPI issued2022 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2003 among the 3,580 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Buffalo Grove
They are 24 of the 868 NPPES records with a practice address in Buffalo Grove, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Buffalo Grove → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Charman, M.D.Buffalo Grove, IL 600891346228954
- Mark Charman, M.D.Buffalo Grove, IL 600891033197637
- Stuart Ferber, M.D.Buffalo Grove, IL 600891952389413
- Irina Goldvekht, D.O.Buffalo Grove, IL 600891154309755
- Thomas Heggen, MDBuffalo Grove, IL 600891710974860
- Gabriel Kibrit, MDBuffalo Grove, IL 600891477531937
- Carl Lang, M.D.Buffalo Grove, IL 600891730167339
- Wendi Marcus, M.D.Buffalo Grove, IL 600891548249113
Common questions
What is Khrystyna Deka, MD's NPI number?
Khrystyna Deka, MD's National Provider Identifier (NPI) is 1053051110, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Khrystyna Deka, MD located?
The NPPES record lists a practice address at 650 W Lake Cook RD, Buffalo Grove, IL, 60089. Phone: (847) 459-1160. Providers update this record themselves, so call before visiting.
How can I verify Khrystyna Deka, MD's license?
NPPES lists Illinois license number 036-175316, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Khrystyna Deka, MD prescribe under Medicare Part D?
In 2024, Khrystyna Deka, MD had 46 Medicare Part D claims for 29 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.