Dr. Ihab Hajjar, MD, MS
- Medicare services, 2024
- 24
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 170
- Publications
- 86
- Clinical trials
- 5
- Practice address
- 6201 Harry Hines Blvd, Dallas, TX 75390
- Practice phone
- Call (214) 633-5555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hajjar'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 Hajjar is a neurologist in Dallas, Texas
Dr. Hajjar practices at William P. Clements Jr. University Hospital in Dallas, Texas, part of The University of Texas System.
Dr. Hajjar's NPI, 1891723912, was assigned on June 29, 2006. Dr. Hajjar graduated from American University of Beirut Faculty of Medicine in 1994. Dr. Hajjar holds Texas license T7425.
- NPI
- 1891723912NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658388202
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (214) 633-5555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ihab Hajjar practices at William P. Clements Jr. University Hospital in Dallas, Texas
Dr. Hajjar's primary practice is William P. Clements Jr. University Hospital, at 6201 Harry Hines Blvd, Dallas, TX 75390 in Dallas County. The practice phone is (214) 633-5555.
- William P. Clements Jr. University Hospital6201 Harry Hines Blvd, Dallas, TX 75390 · Dallas CountyPhone(214) 633-5555
Source: Dmand AI Affiliation Data
Dr. Ihab Hajjar is affiliated with 2 sites of care and 2 medical groups
Dr. Hajjar's primary practice is William P. Clements Jr. University Hospital in Dallas, Texas, part of The University of Texas System. The medical group on file is University of Texas Southwestern Medical Center. Dmand AI also links Dr. Hajjar to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ihab Hajjar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hajjar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William P. Clements Jr. University Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ihab Hajjar is one of 1,226 neurologists in Texas
Neurology is Dr. Hajjar's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Hajjar is board certified in geriatric medicine by the American Board of Internal Medicine. Dmand AI has Dr. Hajjar's licenses on file in 9 states: Texas, California, Georgia, North Carolina, Alabama, Massachusetts, South Carolina, Wisconsin and Ohio.
Specialties and state licenses
- Neurology, TexasPrimary
- California license
- Georgia license
- North Carolina license
- Alabama license
- Geriatric medicine (internal medicine), Massachusetts
- South Carolina license
- Wisconsin license
- Ohio license
Clinical focus
Dmand AI lists non-alzheimer's dementia (chronic) among the conditions Dr. Hajjar treats.
Neurologists near Dr. Hajjar
Counts of neurologists 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 Hajjar billed Medicare for 24 services in 2024
CMS data shows 24 Medicare services from Dr. Hajjar across 1 procedure code in 2024, all of them office visits, for 24 Medicare patients. Medicare paid $3,061 for them. Every service was in an office.
Dr. Hajjar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 442024: 2445%
Dr. Hajjar compared with the Texas median for neurologists, 2024
- Dr. Hajjar
- Texas median
- Medicare services
- 24vs 45995% below
- Medicare patients
- 24vs 23290% below
- Part D claims
- 115vs 48076% below
Medians across 1,116 neurologists in Texas with Dmand AI profiles that report each measure.
Dr. Hajjar's most billed Medicare procedure codes, 2024
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. Hajjar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hajjar and other neurologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ihab Hajjar treated 24 Medicare patients in 2024, average age 79
CMS counts 24 Medicare patients who saw Dr. Hajjar in 2024. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hajjar's median patient age at 71, with 69% women.
Dr. Hajjar's Medicare patients by sex, 2024
- Women1354%
- Men1146%
Chronic conditions among Dr. Hajjar's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Alzheimer's and dementia67%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hajjar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women69%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ihab Hajjar wrote 170 Medicare Part D claims in 2024
In 2024, Dr. Hajjar wrote 170 Medicare Part D claims for 37 patients. 89% of them were for generic drugs. CMS names the drug for 115 of them, across 5 drugs with 11 or more claims each, at $8,062 in total drug cost. In 2023, CMS named 112 claims across 3 drugs.
Dr. Hajjar's Part D claims by kind of drug, 2024
- Generic152 claims89%
- Brand-name18 claims11%
Dr. Hajjar's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1122024: 1153%
Drugs named by CMS: 5 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ihab Hajjar scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Hajjar for performance year 2024, reported as part of a group. Dr. Hajjar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hajjar's MIPS scores, performance year 2024
- 83of 100Final score
- 70.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ihab Hajjar has 86 publications on record
Dmand AI links 86 papers to Dr. Hajjar, published from 2007 to 2025. 2024 was the busiest year, with 10. The most frequent topics are Cognitive Dysfunction, Alzheimer Disease and Cognition. Dr. Hajjar has published most often in J Alzheimers Dis. Dr. Hajjar's most frequent co-authors are Arshed A. Quyyumi, MD, Lewis A. Lipsitz, MD and James J. Lah, MD, PhD.
Dr. Hajjar's papers by year, 2016 to 2025
Topics Dr. Hajjar writes about most
- Cognitive Dysfunction
- Alzheimer Disease
- Cognition
- Hypertension
- Blood Pressure
- Antihypertensive Agents
- Neuropsychological Tests
- Brain
Dr. Hajjar's most frequent co-authors
- Arshed A. Quyyumi, MD10 shared papers
- Lewis A. Lipsitz, MD9 shared papers
- James J. Lah, MD, PhD7 shared papers
Recent publications by Dr. Hajjar
Serum Neurofilament Light-Chain Levels in Essential Tremor: A Replication Study (opens in a new tab)
Neurodegener Dis
See who Dr. Hajjar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hajjar works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ihab Hajjar has worked on 5 clinical trials
Dmand AI links Dr. Hajjar to 5 clinical trials, 2 of them phase 2 studies. 1 is still active or recruiting. Conditions studied include Alzheimer Disease, Tauopathies and Cognitive Dysfunction. Emory University sponsors the most, 2.
Clinical trials with Dr. Hajjar by phase
- NonePhase 1: no trials
- 2Phase 2: 2 trials
- 1Phase 2/3: 1 trial
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in Dr. Hajjar's trials
- Alzheimer Disease
- Tauopathies
- Cognitive Dysfunction
- Plaque, Amyloid
- Cognition Disorders
Investigators on the most trials with Dr. Hajjar
- Raymond Scott Turner, MD, PhD3 shared trials
- Ranjan Duara, MD2 shared trials
- Jonathan Leonard Liss, MD2 shared trials
Recent clinical trials with Dr. Hajjar
Metformin in Alzheimer's Dementia Prevention (opens in a new tab)
Effects of Montelukast Therapy on Alzheimer's Disease (EMERALD) (opens in a new tab)
Candesartan's Effects on Alzheimer's Disease And Related Biomarkers (opens in a new tab)
An Efficacy and Safety Study of ALZ-801 in APOE4/4 Early AD Subjects (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Ihab Hajjar graduated from American University of Beirut Faculty of Medicine
Dr. Hajjar graduated from American University of Beirut Faculty of Medicine in 1994.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Ihab Hajjar accepts plans from 19 insurance carriers
Dr. Hajjar is in network with 19 carriers, including United Healthcare, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- United Healthcare
- Aetna
- Blue Cross Blue Shield of Michigan
- Cigna
- Elevance
- HCSC
- Humana
- Alliant Health Plans
- +11 more carriersWith a free account
Plan types Dr. Hajjar accepts, by number of carriers
- HMO13
- PPO10
- Medicare6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Ihab Hajjar'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand 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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Hajjar
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 Hajjar's NPI number?
Dr. Ihab Hajjar's NPI number is 1891723912. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ihab Hajjar?
Dr. Ihab Hajjar is a neurologist in Dallas, Texas. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Ihab Hajjar practice?
Dr. Hajjar practices at 6201 Harry Hines Blvd, Dallas, TX 75390. Dr. Hajjar's primary practice is William P. Clements Jr. University Hospital in Dallas, Texas, part of The University of Texas System. Dmand AI also links Dr. Hajjar to 1 group practice or clinic and 1 medical group.
What is Dr. Ihab Hajjar's office phone number?
The practice phone on file for Dr. Hajjar is (214) 633-5555.
What is Dr. Ihab Hajjar's medical license number?
Dr. Hajjar holds Texas license T7425, one of the licenses on file in 9 states.
Which states has Dr. Ihab Hajjar been licensed in?
Dmand AI has state licenses on file for Dr. Hajjar in Texas (2022 to 2027), California (since 2010), Georgia (2013 to 2022), North Carolina (2020 to 2022), Alabama (2020), Massachusetts (2006 to 2012), South Carolina (2000 to 2007), Wisconsin (1998 to 2001) and Ohio (1997 to 2000).
Which hospitals is Dr. Ihab Hajjar affiliated with?
Dr. Hajjar practices at William P. Clements Jr. University Hospital in Dallas, Texas.
What medical group is Dr. Ihab Hajjar part of?
Dr. Hajjar is linked to University of Texas Southwestern Medical Center. Dmand AI links Dr. Hajjar to 1 more medical group.
Does Dr. Ihab Hajjar accept Medicare?
Yes. CMS data shows Dr. Hajjar billed Medicare for 24 services in 2024, and Dr. Hajjar accepts Medicare assignment.
What is Dr. Ihab Hajjar's MIPS score?
Dr. Hajjar's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Ihab Hajjar see?
CMS counts 24 Medicare patients who saw Dr. Hajjar in 2024, with an average age of 79.
Is Dr. Ihab Hajjar board certified?
Yes. Dr. Hajjar is board certified in geriatric medicine by the American Board of Internal Medicine.
What services does Dr. Ihab Hajjar bill to Medicare?
In 2024, Dr. Hajjar's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Ihab Hajjar go to medical school?
Dr. Hajjar graduated from American University of Beirut Faculty of Medicine in 1994.
What drugs does Dr. Ihab Hajjar prescribe most?
In 2024 Medicare Part D data, Dr. Hajjar's most prescribed drugs by claims were Donepezil HCl, Trazodone HCl and Adlarity.
How long has Dr. Ihab Hajjar been practicing?
Dr. Hajjar graduated from medical school in 1994, 32 years ago.
Does Dr. Ihab Hajjar do research?
Dmand AI links 86 publications to Dr. Hajjar, published from 2007 to 2025. Dr. Hajjar has worked on 5 clinical trials.
Who does Dr. Ihab Hajjar publish with?
Dr. Hajjar's most frequent co-authors are Arshed A. Quyyumi, MD (10 shared papers), Lewis A. Lipsitz, MD (9 shared papers) and James J. Lah, MD, PhD (7 shared papers).
What insurance does Dr. Ihab Hajjar accept?
Dr. Hajjar is in network with 19 carriers, including United Healthcare, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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