Dr. Ihab Hajjar, MD, MS

  • Dallas, TX
  • Neurologist
NPI1891723912PAC ID1658388202
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
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Personal email
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Mobile number
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Social profiles

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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 and contact details
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
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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.

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.

See all 4 affiliations for Dr. Hajjar

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.

EHR by site
SiteEHR vendor and product
William P. Clements Jr. University HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across The University of Texas System and 6.2K+ hospitals, with verified contacts in the same login.

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, TexasPrimaryLicense T7425 · 2022 to 2027 · taxonomy 2084N0400X
  • California licenseLicense C54104 · Since 2010
  • Georgia licenseLicense 70835 · 2013 to 2022
  • North Carolina license2020 to 2022
  • Alabama license2020
  • Geriatric medicine (internal medicine), MassachusettsLicense 227075 · 2006 to 2012 · taxonomy 207RG0300X
  • South Carolina license2000 to 2007
  • Wisconsin license1998 to 2001
  • Ohio license1997 to 2000

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.

Medicare services, 202424
Medicare patients24
Paid by Medicare$3,061
Procedure codes1

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.

See all procedures by Dr. Hajjar

Need commercial claims for Dr. Hajjar?

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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.

Medicare patients, 202424
Average age79
Average risk score1.34

Dr. Hajjar's Medicare patients by sex, 2024

  • Women1354%
  • Men1146%

Chronic conditions among Dr. Hajjar's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. 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.

Part D claims, 2024170
Drugs named by CMS5
Total drug cost$8,062
Part D patients37

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.

See all prescribing by Dr. Hajjar

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

For MedTech and pharma teams

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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.

Papers86
Years published2007 to 2025

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

Recent publications by Dr. Hajjar

See all 86 publications and co-authors

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.

How network discovery works

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

  1. NonePhase 1: no trials
  2. 2Phase 2: 2 trials
  3. 1Phase 2/3: 1 trial
  4. 1Phase 3: 1 trial
  5. 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

Recent clinical trials with Dr. Hajjar

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.

  1. Medical schoolAmerican University of Beirut Faculty of Medicine
  2. Board certified in geriatric medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of 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.

Plan types Dr. Hajjar accepts, by number of carriers

  1. HMO13
  2. PPO10
  3. Medicare6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Ihab Hajjar's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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