Quick answers
- Does Marco H. Ji accept Medicare assignment?
- Yes. Medicare's clinician data says Marco H. Ji 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.
- What is Marco H. Ji's NPI number?
- 1811525777. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marco H. Ji works
Medicare's Facility Affiliation Data lists Marco H. Ji 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.
- Ascension Seton Medical Center AustinAustin, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450056
Practice locations
Addresses where Marco H. Ji is enrolled with Medicare (CMS data updated October 2, 2026).
- 1545 Round Rock Ave, Suite 200Round Rock, TX 78681 (512) 610‑2820
- 801 W 38th St, Suite 200Austin, TX 78705 (512) 451‑0103
Group practices
Medicare enrollment lists Marco H. Ji as a member of this group (CMS data updated October 2, 2026).
- Austin Retina Associates PLLC19 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Other clinicians in Austin Retina Associates PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811525777 |
| 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
- 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