Quick answers
- Does Marvin L. Hsiao accept Medicare assignment?
- Yes. Medicare's clinician data says Marvin L. Hsiao 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 Marvin L. Hsiao see?
- In 2024, CMS data shows 399 Original Medicare patients and 1,223 services for Marvin L. Hsiao. This counts Original Medicare only and measures volume, not quality.
- What is Marvin L. Hsiao's NPI number?
- 1477756310. 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 Marvin L. Hsiao, 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 | 399 |
|---|---|
| Services billed to Medicare | 1,223 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)339 services
- Established patient problem focused exam of visual system (92012)268 services
- Exam of visual field with extended testing (92083)103 services
- New patient complete exam of visual system (92004)100 services
- Measurement of corneal curvature and depth of eye (92136)68 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 cholesterol75%
- High blood pressure72%
- Arthritis37%
- Diabetes36%
- Chronic kidney disease26%
- Ischemic heart disease22%
Practice locations
Addresses where Marvin L. Hsiao is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1948 E Hebron PkwyCarrllton, TX 75007 (972) 395‑7131
- 1948 E Hebron Pkwy, Suite 200Carrollton, TX 75007
- 4900 Harry Hines BlvdDallas, TX 75235
- 5151 Maple AveDallas, TX 75235
- 5201 Harry Hines BlvdDallas, TX 75235
Group practices
Medicare enrollment lists Marvin L. Hsiao as a member of these groups (CMS data updated October 2, 2026).
- University of Texas Southwestern Medical Center at Dallas3,187 clinicians in the group
- Lee Eye Surgery Clinic PA2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Other clinicians in University of Texas Southwestern Medical Center at Dallas
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477756310 |
| 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