Quick answers
- Does Gregory Kozielec accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Kozielec 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 Gregory Kozielec see?
- In 2024, CMS data shows 1,683 Original Medicare patients and 43,846 services for Gregory Kozielec. This counts Original Medicare only and measures volume, not quality.
- What is Gregory Kozielec's NPI number?
- 1053379081. 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 Gregory Kozielec, 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 | 1,683 |
|---|---|
| Services billed to Medicare | 43,846 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, ranibizumab, 0.1 mg (J2778)16,632 services
- Injection, avacincaptad pegol, 0.1 mg (J2782)8,060 services
- Imaging of retina (92134)5,186 services
- Established patient complete exam of visual system (92014)4,176 services
- Injection of drug into eye (67028)3,625 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 blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes37%
- Ischemic heart disease30%
- Chronic kidney disease29%
Hospitals where Gregory Kozielec works
Medicare's Facility Affiliation Data lists Gregory Kozielec at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baylor Surgical Hospital at Las ColinasIrving, TX · Acute Care Hospital · Emergency services: listed by Medicare · CCN 450874
Practice locations
Addresses where Gregory Kozielec is enrolled with Medicare (CMS data updated October 2, 2026).
- 1010 E I, Suite 20Arlington, TX 76018 (817) 417‑7769
- 3331 Unicorn Lake BlvdDenton, TX 76210 (940) 381‑9100
Group practices
Medicare enrollment lists Gregory Kozielec as a member of this group (CMS data updated October 2, 2026).
- Retina Institute of Texas PA4 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Arlington
Clinicians with the same Medicare primary specialty in Arlington, TX — not a recommendation.
Other clinicians in Retina Institute of Texas PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053379081 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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