Iliana Elias Sweis, M.D.
Specialist · Northbrook, IL
Iliana Elias Sweis, M.D. is a specialist with a practice address in Northbrook, Illinois, and NPI 1437298221, issued on Feb 6, 2007. Check the license (Illinois 036-088684, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Iliana Elias Sweis
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036-088684 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1535 Lake Cook RD, Northbrook, IL 60062
- Phone
- (847) 291-3200
- Enumerated
- Feb 6, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 562-0670
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Also registered at 1535 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 Iliana Elias Sweis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036-088684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average specialist in 2024
96 Medicare Part D claims for 35 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Valacyclovir15 claims
- Cefadroxil14 claims
- Hydrocodone-Acetaminophen11 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.
Industry payments in 2024: $31.55
1 payment: food and beverage; the largest payer was Abbvie Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Iliana Elias Sweis among 1,154 specialist records in Illinois
Iliana Elias Sweis, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% 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 42% of them.
- NPI issued2007 · 42% of these records are older, 37% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2007 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Illinois
There are 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in Northbrook → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Bonnie Barsky, M.D.Northbrook, IL 600621114957156
- Young Byun, M.D.,S.C.Northbrook, IL 600621710011598
- Jovanka Hedeker, CHNorthbrook, IL 600621073772679
- Jennifer MandellNorthbrook, IL 600621528476694
- A Rothenberg, M.D.Northbrook, IL 600621184683765
- Eleanor Ruffin, BS MANorthbrook, IL 600621902185242
- Tara Troy, MD.Northbrook, IL 600621306825740
- Steven Valfer, M.D.Northbrook, IL 600621669562880
Common questions
What is Iliana Elias Sweis, M.D.'s NPI number?
Iliana Elias Sweis, M.D.'s National Provider Identifier (NPI) is 1437298221, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Iliana Elias Sweis, M.D. located?
The NPPES record lists a practice address at 1535 Lake Cook RD, Northbrook, IL, 60062. Phone: (847) 291-3200. Providers update this record themselves, so call before visiting.
How can I verify Iliana Elias Sweis, M.D.'s license?
NPPES lists Illinois license number 036-088684, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Iliana Elias Sweis, M.D. prescribe under Medicare Part D?
In 2024, Iliana Elias Sweis, M.D. had 96 Medicare Part D claims for 35 beneficiaries; the average among specialist prescribers was 1,380. 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.