Quick answers
- Does Iyad Subei accept Medicare assignment?
- Yes. Medicare's clinician data says Iyad Subei accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Iyad Subei see?
- In 2024, CMS data shows 86 Original Medicare patients and 731 services for Iyad Subei. This counts Original Medicare only and measures volume, not quality.
- What is Iyad Subei's NPI number?
- 1558981399. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Iyad Subei, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 86 |
|---|---|
| Services billed to Medicare | 731 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)88 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)42 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)39 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)30 services
- Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)16 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol72%
- High blood pressure58%
- Arthritis44%
- Anxiety22%
- Depression20%
- Diabetes17%
Practice locations
Addresses where Iyad Subei is enrolled with Medicare (CMS data updated October 2, 2026).
- 3855 Glade RdColleyville, TX 76034 (817) 809‑8760
- 4130 N Collins StArlington, TX 76005 (817) 809‑8760
Group practices
Medicare enrollment lists Iyad Subei as a member of this group (CMS data updated October 2, 2026).
- Subei Medical PLLC4 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Other clinicians in Subei Medical PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1975 (51 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558981399 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians