AMMAR MOHAMED-ALI HALLOUM M.D.
NPI 1043300148
Internal Medicine - Pulmonary Disease in Brownsville, TX
About Ammar Mohamed-ali Halloum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMMAR MOHAMED-ALI HALLOUM M.D. (NPI 1043300148) is an individual pulmonary disease provider in Brownsville, Texas, licensed in Texas (M4804) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Valley Baptist Medical Center- Brownsville, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 5
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
Ammar Mohamed-ali Halloum M.d. 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
3Medicare enrollment records show Ammar Halloum reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brownsville, TX 78520
- Reassigned Medicare billing, Texas enrollment
- 10 clinicians in this Medicare group
Harlingen, TX 78550
- Reassigned Medicare billing, Texas enrollment
- 19 clinicians in this Medicare group
San Antonio, TX 78258
- Reassigned Medicare billing, Texas enrollment
- 964 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 6
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Valley Baptist Medical Center- Brownsville
Acute Care Hospitals · Brownsville, TXVhs Harlingen Hospital Company LLC
Acute Care Hospitals · Harlingen, TXHarlingen Medical Center
Acute Care Hospitals · Harlingen, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROWNSVILLE, TX 78520
BROWNSVILLE, TX 78520
BROWNSVILLE, TX 78520
BROWNSVILLE, TX 78520
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 Ammar Halloum's NPI number?
The NPI number for Ammar Halloum is 1043300148. It was assigned to this individual provider in the NPPES registry on October 13, 2006.
Where is Ammar Halloum located?
Ammar Halloum practices at 844 Central Blvd 420, Brownsville, TX 78520. The listed phone number is (956) 428-7862.
What is Ammar Halloum's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Ammar Halloum enrolled in Medicare?
Yes. Ammar Halloum 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 Ammar Halloum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ammar Halloum reassigns Medicare benefits to 3 organizations: Brownsville Pulmonary Center, P.A. (Brownsville, TX), Benchmark Inpatient Services PLLC (Harlingen, TX) and Bhs Physicians Network, Inc (San Antonio, 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 Ammar Halloum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ammar Halloum accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Ammar Halloum 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 Ammar Halloum affiliated with any hospitals?
According to CMS data, Ammar Halloum is affiliated with Valley Baptist Medical Center- Brownsville, Vhs Harlingen Hospital Company LLC and Harlingen Medical Center.
When was this NPI record last updated?
The NPPES record for Ammar Halloum was last updated on February 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.
# Ammar Mohamed-Ali Halloum, M.D. · NPI 1043300148
Pulmonary Disease physician in Brownsville, Texas. Individual provider, active in the CMS NPPES registry since October 13, 2006.
## Identity
- **NPI:** 1043300148 (Entity type: Individual)
- **Enumerated:** October 13, 2006
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** M4804 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 844 CENTRAL BLVD, 420, Brownsville, TX 78520-7552
- **Phone:** (956) 428-7862 · **Fax:** (956) 440-0395
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Brownsville Pulmonary Center, P.A. (NPI 1083664759, Brownsville, TX); Benchmark Inpatient Services PLLC (NPI 1285111021, Harlingen, TX); Bhs Physicians Network, Inc (NPI 1598958431, San Antonio, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** February 29, 2012
- **Other identifiers:** Other 8A9371 (TX); Medicare UPIN I68257 (TX); Medicaid 183807002 (TX); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1043300148) · Data from the CMS NPPES public registry.