Ilja Faibussowitsch, MD
Pulmonary Disease Physician · Chicago, IL
Ilja Faibussowitsch, MD is a pulmonary disease physician with a practice address in Chicago, Illinois, and NPI 1740220193, issued on Jun 7, 2006. Check the license (Illinois 036094678, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ilja Faibussowitsch
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 036094678 IL
55021 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2800 N Sheridan RD, Chicago, IL 60657
- Phone
- (773) 935-5556
- Enumerated
- Jun 7, 2006
- Record last updated
- Oct 30, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 036094678 IL
- Medicare enrollment
- Enrolled (PECOS I20060621000358); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 617 in Illinois → Look up another NPI →
Also registered at 2800 N Sheridan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ilja Faibussowitsch 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 036094678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
218 Medicare Part D claims for 38 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.
Most prescribed
- Breo Ellipta56 claims
- Azelastine Hcl32 claims
- Anoro Ellipta22 claims
- Albuterol Sulfate Hfa15 claims
- Trelegy Ellipta15 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: $701.14
28 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 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
- Respiratory, Critical Care And Sleep Specialists, LLCDes Plaines, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ilja Faibussowitsch among 617 pulmonary disease physician records in Illinois
Ilja Faibussowitsch, MD is one of 617 pulmonary disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1991 · median 2005 among the 444 with a school on file
- Record last updated2018 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Illinois
There are 617 pulmonary disease physician records in Illinois.
All 617 in Illinois → Every provider in Chicago → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Lauren Abplanalp, D.O.Chicago, IL 606571346604642
- Samuel Goodman, M.D.Chicago, IL 606571134500283
- Anil Kachru, MDChicago, IL 606571982679346
- Scott NeeleyChicago, IL 606571083618417
- William Sanders, MDChicago, IL 606571164426599
- Safeer Shah, MDChicago, IL 606571457855819
- Kristin Walter, M.D.Chicago, IL 606571649214636
- Keith Nam, MDChicago, IL 606591922180330
Common questions
What is Ilja Faibussowitsch, MD's NPI number?
Ilja Faibussowitsch, MD's National Provider Identifier (NPI) is 1740220193, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ilja Faibussowitsch, MD located?
The NPPES record lists a practice address at 2800 N Sheridan RD, Chicago, IL, 60657. Phone: (773) 935-5556. Providers update this record themselves, so call before visiting.
How can I verify Ilja Faibussowitsch, MD's license?
NPPES lists Illinois license number 036094678, 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 Ilja Faibussowitsch, MD prescribe under Medicare Part D?
In 2024, Ilja Faibussowitsch, MD had 218 Medicare Part D claims for 38 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.