Dr. Bashar Attar, MD
- Medicare services, 2023
- 63
- Part D claims, 2024
- 19
- Publications
- 94
- Clinical trials
- 3
- MIPS score, 2024
- 95
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Attar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Bashar Attar is a gastroenterologist in Chicago, Illinois
Dr. Attar practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Dr. Attar's NPI, 1790795664, was assigned on August 9, 2006. Dr. Attar holds Illinois license 036-063722.
- NPI
- 1790795664NPI Registry (opens in a new tab)
- NPI enumeration date
- August 9, 2006
- NPI status
- Active
- Practice phone
- (312) 864-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bashar Attar practices at 2 locations in Chicago, Illinois
Dr. Attar's primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000. The NPI Registry lists Dr. Attar's practice address as 1969 W Ogden Ave, Chicago, IL 60612.
- John H. Stroger, Jr. Hospital of Cook CountyPrimary1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
- NPI Registry address1969 W Ogden Ave, Chicago, IL 60612 · Cook CountyPhone(312) 864-7213
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Bashar Attar is affiliated with 1 site of care and 1 medical group
Dr. Attar's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government. The medical group on file is John H. Stroger, Jr. Hospital of Cook County.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Bashar Attar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Attar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bashar Attar is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. Attar's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Attar is licensed in Illinois.
Specialties and state licenses
- Gastroenterology, IllinoisPrimary
Gastroenterologists near Dr. Attar
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Bashar Attar billed Medicare for 63 services in 2023
CMS data shows 63 Medicare services from Dr. Attar across 3 procedure codes in 2023, all of them office visits. Medicare paid $5,013 for them. Every service was in an office.
Dr. Attar's Medicare services by type, 2019 to 2023
- 2019
- 2023
- Office and hospital visits
- 2019: 182023: 63250%
Dr. Attar compared with the Illinois median for gastroenterologists, 2023
- Dr. Attar
- Illinois median
- Medicare services
- 63vs 49887% below
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Dr. Attar's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Attar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Attar and other gastroenterologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bashar Attar wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Attar wrote 19 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Bashar Attar scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Attar for performance year 2024, reported as part of a group.
Dr. Attar's MIPS scores, performance year 2024
- 95of 100Final score
- 74.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Bashar Attar has 94 publications on record
Dmand AI links 94 papers to Dr. Attar, published from 2011 to 2024. 2019 was the busiest year, with 12. The most frequent topics are Pancreatitis, Predictive Value of Tests and Esophagus. Dr. Attar has published most often in Cureus. Dr. Attar's most frequent co-authors are Seema R. Gandhi, MD, Ishaan Vohra, MD and Vikram S. Kotwal, MD.
Dr. Attar's papers by year, 2014 to 2024
Topics Dr. Attar writes about most
- Pancreatitis
- Predictive Value of Tests
- Esophagus
- Hypertriglyceridemia
- Liver Cirrhosis
- Biopsy
- Colitis, Ulcerative
- Colonoscopy
Dr. Attar's most frequent co-authors
- Seema R. Gandhi, MD18 shared papers
- Ishaan Vohra, MD13 shared papers
- Vikram S. Kotwal, MD12 shared papers
Recent publications by Dr. Attar
See who Dr. Attar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Attar works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Bashar Attar has worked on 3 clinical trials
Dmand AI links Dr. Attar to 3 clinical trials. Conditions studied include Colitis, Ulcerative, Colitis and Crohn Disease. Eli Lilly and Company sponsors the most, 3. Open Payments lists research payments to Dr. Attar that name 2 trials.
Conditions in Dr. Attar's trials
- Colitis, Ulcerative
- Colitis
- Crohn Disease
- Inflammatory Bowel Diseases
Investigators on the most trials with Dr. Attar
- Calin S. Arimie, MD3 shared trials
- Tasha Matthews Boone, MD3 shared trials
- Jeff S. Bullock, MD3 shared trials
Recent clinical trials with Dr. Attar
A Study of Mirikizumab (LY3074828) in Participants With Crohn's Disease (opens in a new tab)
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Bashar Attar received $303,182 in industry payments from 2016 to 2025
CMS Open Payments shows 405 general payments to Dr. Attar from 20 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 78% of the total. Gilead Sciences, Inc. paid the most, $297,390. It also lists 3 research payments totaling $744 from 2019 to 2020, naming 2 clinical trials.
General payments to Dr. Attar by program year, 2016 to 2025
General payments to Dr. Attar by kind, 2016 to 2025
- Speaker and faculty fees$236,41878%
- Travel and lodging$42,33514%
- Food and beverage$12,2894%
- Consulting fees$11,8404%
- Other$2990%
Companies that paid Dr. Attar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Bashar Attar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Bashar Attar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Bashar Attar's NPI number?
Dr. Bashar Attar's NPI number is 1790795664. It was assigned on August 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Bashar Attar?
Dr. Bashar Attar is a gastroenterologist in Chicago, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Bashar Attar practice?
Dr. Attar practices at 1901 W Harrison St, Chicago, IL 60612. Dr. Attar also practices at 1969 W Ogden Ave, Chicago, IL 60612. Dr. Attar's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Dr. Bashar Attar's office phone number?
The practice phone on file for Dr. Attar is (312) 864-6000.
What is Dr. Bashar Attar's medical license number?
Dr. Attar holds Illinois license 036-063722.
Which hospitals is Dr. Bashar Attar affiliated with?
Dr. Attar practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
What medical group is Dr. Bashar Attar part of?
Dr. Attar is linked to John H. Stroger, Jr. Hospital of Cook County.
Does Dr. Bashar Attar accept Medicare?
Yes. CMS data shows Dr. Attar billed Medicare for 63 services in 2023.
What is Dr. Bashar Attar's MIPS score?
Dr. Attar's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
What services does Dr. Bashar Attar bill to Medicare?
In 2023, Dr. Attar's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99204).
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Has Dr. Bashar Attar received payments from drug or device companies?
CMS Open Payments shows $303,182 in general payments to Dr. Attar from 20 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Bashar Attar been practicing?
Dr. Attar's NPI was assigned in 2006.
Does Dr. Bashar Attar do research?
Dmand AI links 94 publications to Dr. Attar, published from 2011 to 2024. Dr. Attar has worked on 3 clinical trials.
Who does Dr. Bashar Attar publish with?
Dr. Attar's most frequent co-authors are Seema R. Gandhi, MD (18 shared papers), Ishaan Vohra, MD (13 shared papers) and Vikram S. Kotwal, MD (12 shared papers).
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