Vasilios Kalas, MD/PHD
Hospitalist Physician · Chicago, IL
Vasilios Kalas, MD/PHD is a hospitalist physician with a practice address in Chicago, Illinois, and NPI 1699302521, issued on Mar 23, 2020. Check the license (Illinois 036164255, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Vasilios Kalas
- Credential
- MD/PHD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036164255 IL
1699302521 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 N Saint Clair St Ste 18-200, Chicago, IL 60611
- Phone
- (312) 695-8630
- Enumerated
- Mar 23, 2020
- Record last updated
- Aug 8, 2024
- Fax
- (312) 695-2857
- Medicare enrollment
- Enrolled (PECOS I20240802000486); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 675 N Saint Clair St Ste 18-200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Janice Brown, APRN, CNPNurse Practitioner1376275594
- Natalie CameronInternal Medicine Physician1417451022
- Samantha Canning, MDInternal Medicine Physician1629606769
Verify Vasilios Kalas 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 036164255Check 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: $296.87
4 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 7,324 providers of this specialty with any payment received $494.84 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
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vasilios Kalas among 1,535 hospitalist physician records in Illinois
Vasilios Kalas, MD/PHD is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 79% of them.
- NPI issued2020 · 79% of these records are older, 14% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2020 · median 2013 among the 1,339 with a school on file
- Record last updated2024 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Illinois
There are 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Chicago → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Abby Agulnek, DOChicago, IL 606111689662942
- Jeffrey Barsuk, MDChicago, IL 606111528031333
- Anjali Desai, M.D.Chicago, IL 606111730126004
- Vinnette Forde, MDChicago, IL 606111033174164
- Peter Kallas, M.D.Chicago, IL 606111760425797
- Michael Kornfeld, MDChicago, IL 606111538198833
- Nita Kulkarni, MDChicago, IL 606111790717460
- Matthew Landler, MDChicago, IL 606111740212398
Common questions
What is Vasilios Kalas, MD/PHD's NPI number?
Vasilios Kalas, MD/PHD's National Provider Identifier (NPI) is 1699302521, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Vasilios Kalas, MD/PHD located?
The NPPES record lists a practice address at 675 N Saint Clair St Ste 18-200, Chicago, IL, 60611. Phone: (312) 695-8630. Providers update this record themselves, so call before visiting.
How can I verify Vasilios Kalas, MD/PHD's license?
NPPES lists Illinois license number 036164255, 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.
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.