Dr. Bashar Attar, MD
Gastroenterology (Gastroenterology Physician)
1901 W Harrison St
Chicago, IL 60612
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
At a glance
- In the NPI registry since
- 2006
Licensed in Illinois since 1982, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gastroenterology Physician primary
IL license 036-063722 (first issued 1982; active) -
Hepatology Physician
IL license 036-063722 (first issued 1982; active) -
Internal Medicine Physician
IL license 036-063722 (first issued 1982; active) -
Transplant Hepatology Physician
IL license 036-063722 (first issued 1982; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 36 | 32 |
| Established patient office or other outpatient visit, 20-29 minutes | 16 | 16 |
| New patient office or other outpatient visit, 45-59 minutes | 11 | 11 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 1 companies reported 18 payments worth $11,281 in total to this clinician.
| Gilead Sciences, Inc. | $11,281 |
|---|
| Compensation for services other than consulting (speaking, faculty) | $9,500 |
|---|---|
| Travel and Lodging | $1,260 |
| Food and Beverage | $522 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Gilead Sciences, Inc. Mar 13, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;3978783;GTF;10921922 | $3,240 |
| Gilead Sciences, Inc. Jul 28, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4136280;AHM;10921922 | $2,830 |
| Gilead Sciences, Inc. Nov 10, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4259868;AHM;10921922 | $2,830 |
| Gilead Sciences, Inc. Oct 24, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4249462;GTF;10921922 | $600 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4027190;GTF;10921922 | $438 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4026814;GTF;10921922 | $350 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4026818;GTF;10921922 | $284 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027051;GTF;10921922 | $46.00 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027095;GTF;10921922 | $42.00 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027053;GTF;10921922 | $40.00 |
All 12 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Gilead Sciences, Inc. Nov 18, 2025 | Travel and Lodging Epclusa · HCV · travel to Chicago, IL · in-kind Company’s description;4259017;AHM;10921922 | $22.83 |
| Gilead Sciences, Inc. Nov 10, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4259868;AHM;10921922 | $2,830 |
| Gilead Sciences, Inc. Oct 24, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4249462;GTF;10921922 | $600 |
| Gilead Sciences, Inc. Aug 4, 2025 | Travel and Lodging Epclusa · HCV · travel to Chicago, IL · in-kind Company’s description;4135422;AHM;10921922 | $36.41 |
| Gilead Sciences, Inc. Jul 28, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;4136280;AHM;10921922 | $2,830 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027051;GTF;10921922 | $46.00 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027095;GTF;10921922 | $42.00 |
| Gilead Sciences, Inc. Apr 24, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA Company’s description;4027053;GTF;10921922 | $40.00 |
| Gilead Sciences, Inc. Mar 13, 2025 | Compensation for services other than consulting (speaking, faculty) Epclusa · HCV Company’s description;3978783;GTF;10921922 | $3,240 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4027190;GTF;10921922 | $438 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4026814;GTF;10921922 | $350 |
| Gilead Sciences, Inc. Mar 1, 2025 | Travel and Lodging Epclusa · HCV · travel to Atlanta, GA · in-kind Company’s description;4026818;GTF;10921922 | $284 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.