J Gastroenterol Hepatol
Adenomatous Polyposis ColiGastric FundusHelicobacter Infections
Dr. Ihab I. El Hajj, MD
NPI1164678637
- Medicare services, 2017
- 455
- Part D claims, 2017
- 36
- Publications
- 84
- Industry payments
- $422
- State licenses
- 3
- Practice address
- 530 NE Glen Oak Ave, Peoria, IL 61603
- Practice phone
- Call (317) 944-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. El Hajj'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. Ihab I. El Hajj is a gastroenterologist in Peoria, Illinois
Dr. El Hajj practices in Peoria, Illinois.
Dr. El Hajj's NPI, 1164678637, was assigned on August 15, 2008. Dr. El Hajj's Indiana license number on file is 01069315A.
NPI and contact details
- NPI
- 1164678637NPI Registry (opens in a new tab)
- NPI enumeration date
- August 15, 2008
- NPI status
- Active
- Practice phone
- (317) 944-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Ihab I. El Hajj's practice address is in Peoria, Illinois
Dr. El Hajj's practice address in the NPI Registry is 530 NE Glen Oak Ave, Peoria, IL 61603, in Peoria County. The practice phone is (317) 944-5000.
- NPI Registry address530 NE Glen Oak Ave, Peoria, IL 61603 · Peoria CountyPhone(317) 944-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Ihab I. El Hajj's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. El Hajj practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. El Hajj's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ihab I. El Hajj is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. El Hajj's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. El Hajj is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. El Hajj's licenses on file in 3 states: Indiana, Pennsylvania and Colorado.
Specialties and state licenses
- Gastroenterology, IndianaPrimary
- Internal medicine, Pennsylvania
- Colorado license
Gastroenterologists near Dr. El Hajj
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. Ihab I. El Hajj billed Medicare for 455 services in 2017
CMS data shows 455 Medicare services from Dr. El Hajj across 16 procedure codes in 2017. Medicare paid $52,758 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2017455
Paid by Medicare$52,758
Procedure codes16
Dr. El Hajj's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Surgery
- 2016: 4732017: 26045%
- Office and hospital visits
- 2016: 2802017: 13153%
- Imaging
- 2016: 02017: 64
Dr. El Hajj compared with the Illinois median for gastroenterologists, 2017
- Dr. El Hajj
- Illinois median
- Medicare services
- 455vs 4989% below
- Part D claims
- 36vs 37090% below
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Dr. El Hajj's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ihab I. El Hajj wrote 36 Medicare Part D claims in 2017
In 2017, Dr. El Hajj wrote 36 Medicare Part D claims. They cover 2 drugs, with $44,007 in total drug cost. In 2016, CMS named 154 claims across 7 drugs.
Part D claims, 201736
Drugs named by CMS2
Total drug cost$44,007
Dr. El Hajj's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1542017: 3677%
Drugs named by CMS: 2 in 2017, 7 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ihab I. El Hajj has 84 publications on record
Dmand AI links 84 papers to Dr. El Hajj, published from 2008 to 2025. 2017 was the busiest year, with 17. The most frequent topics are Cholangiopancreatography, Endoscopic Retrograde, Pancreatic Neoplasms and Endosonography. Dr. El Hajj has published most often in Gastrointest Endosc. Dr. El Hajj's most frequent co-authors are Jeffrey James Easler, MD, Glen A. Lehman, MD and Mohammad A. Al-Haddad, MD.
Papers84
Years published2008 to 2025
Dr. El Hajj's papers by year, 2012 to 2025
Topics Dr. El Hajj writes about most
- Cholangiopancreatography, Endoscopic Retrograde
- Pancreatic Neoplasms
- Endosonography
- Endoscopic Ultrasound-Guided Fine Needle Aspiration
- Adenocarcinoma
- Pancreas
- Tomography, X-Ray Computed
- Biopsy, Fine-Needle
Dr. El Hajj's most frequent co-authors
- Jeffrey James Easler, MD17 shared papers
- Glen A. Lehman, MD17 shared papers
- Mohammad A. Al-Haddad, MD15 shared papers
Recent publications by Dr. El Hajj
Am J Case Rep
Anemia, Iron-DeficiencyDuodenal DiseasesDuodenum
See who Dr. El Hajj researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. El Hajj 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. Ihab I. El Hajj received $422 in industry payments in 2017
CMS Open Payments shows 5 general payments to Dr. El Hajj from 2 drug and device companies in 2017. Food and beverage make up the largest share, 57% of the total. Apollo Endosurgery US Inc paid the most, $275.
General payments to Dr. El Hajj by kind, 2017 to 2017
$422in total
- Food and beverage$23957%
- Travel and lodging$18443%
Companies that paid Dr. El Hajj the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ihab I. El Hajj is board certified in gastroenterology
Dr. El Hajj is a member of ACG, ACP, AGA and ASGE.
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Sources for Dr. Ihab I. El Hajj'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 Practice 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 and Drug (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Ihab I. El Hajj
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. Ihab I. El Hajj's NPI number?
Dr. Ihab I. El Hajj's NPI number is 1164678637. It was assigned on August 15, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ihab I. El Hajj?
Dr. Ihab I. El Hajj is a gastroenterologist in Peoria, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Ihab I. El Hajj practice?
Dr. El Hajj practices at 530 NE Glen Oak Ave, Peoria, IL 61603.
What is Dr. Ihab I. El Hajj's office phone number?
The practice phone on file for Dr. El Hajj is (317) 944-5000.
What is Dr. Ihab I. El Hajj's medical license number?
Dr. El Hajj's Indiana license number on file is 01069315A, one of the licenses on file in 3 states.
Which states has Dr. Ihab I. El Hajj been licensed in?
Dmand AI has state licenses on file for Dr. El Hajj in Indiana (2011 to 2025), Pennsylvania and Colorado (2013 to 2021).
Does Dr. Ihab I. El Hajj accept Medicare?
Yes. CMS data shows Dr. El Hajj billed Medicare for 455 services in 2017.
Is Dr. Ihab I. El Hajj board certified?
Yes. Dr. El Hajj is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Ihab I. El Hajj bill to Medicare?
In 2017, Dr. El Hajj's most billed Medicare services were hospital inpatient care (99232), surgery: digestive system (43264) and diagnostic imaging (74328).
What drugs does Dr. Ihab I. El Hajj prescribe most?
In 2017 Medicare Part D data, Dr. El Hajj's most prescribed drugs by claims were Promethazine HCl and Creon.
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Has Dr. Ihab I. El Hajj received payments from drug or device companies?
CMS Open Payments shows $422 in general payments to Dr. El Hajj from 2 companies from 2017 to 2017. The largest total came from Apollo Endosurgery US Inc.
How long has Dr. Ihab I. El Hajj been practicing?
Dr. El Hajj's NPI was assigned in 2008.
Does Dr. Ihab I. El Hajj do research?
Dmand AI links 84 publications to Dr. El Hajj, published from 2008 to 2025.
Who does Dr. Ihab I. El Hajj publish with?
Dr. El Hajj's most frequent co-authors are Jeffrey James Easler, MD (17 shared papers), Glen A. Lehman, MD (17 shared papers) and Mohammad A. Al-Haddad, MD (15 shared papers).
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