IHAB HAJJAR MD,MS
NPI 1891723912
Internal Medicine - Geriatric Medicine in Dallas, TX
About Ihab Hajjar Md,ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IHAB HAJJAR MD,MS (NPI 1891723912) is an individual geriatric medicine provider in Dallas, Texas, licensed in Texas (T7425) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Ut Southwestern University Hospital - William P. Clements Jr., and maintains a secondary practice location in Houston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ihab Hajjar Md,ms is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Ihab Hajjar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75390
- Reassigned Medicare billing, Texas enrollment
- 5,299 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ut Southwestern University Hospital - William P. Clements Jr.
Acute Care Hospitals · Dallas, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75390 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DALLAS, TX 75390
DALLAS, TX 75390
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ihab Hajjar's NPI number?
The NPI number for Ihab Hajjar is 1891723912. It was assigned to this individual provider in the NPPES registry on June 29, 2006.
Where is Ihab Hajjar located?
Ihab Hajjar practices at 5303 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (323) 442-5100.
What is Ihab Hajjar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Ihab Hajjar enrolled in Medicare?
Yes. Ihab Hajjar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ihab Hajjar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ihab Hajjar reassigns Medicare benefits to 2 organizations: University Of Texas Southwestern Medical Center At Dallas (Dallas, TX) and Baylor College Of Medicine (Houston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ihab Hajjar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ihab Hajjar accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Health, UnitedHealthcare and WellPoint list Ihab Hajjar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ihab Hajjar affiliated with any hospitals?
According to CMS data, Ihab Hajjar is affiliated with Ut Southwestern University Hospital - William P. Clements Jr..
When was this NPI record last updated?
The NPPES record for Ihab Hajjar was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ihab Hajjar, MD,MS · NPI 1891723912
Geriatric Medicine physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since June 29, 2006.
## Identity
- **NPI:** 1891723912 (Entity type: Individual)
- **Enumerated:** June 29, 2006
- **Primary specialty:** Internal Medicine - Geriatric Medicine · taxonomy 207RG0300X
- **State license:** T7425 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5303 HARRY HINES BLVD, Dallas, TX 75390-5310
- **Phone:** (323) 442-5100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Texas Southwestern Medical Center At Dallas (NPI 1871563494, Dallas, TX); Baylor College Of Medicine (NPI 1881026664, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** June 18, 2026
- **Other identifiers:** Other GR0100430 (CA); Other 1902846306 (CA); Other W18762 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1891723912) · Data from the CMS NPPES public registry.