Quick answers
- Does Dac-Nha L. Truong accept Medicare assignment?
- Yes. Medicare's clinician data says Dac-Nha L. Truong 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 Dac-Nha L. Truong see?
- In 2024, CMS data shows 65 Original Medicare patients and 163 services for Dac-Nha L. Truong. This counts Original Medicare only and measures volume, not quality.
- What is Dac-Nha L. Truong's NPI number?
- 1508559329. 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 Dac-Nha L. Truong, 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 | 65 |
|---|---|
| Services billed to Medicare | 163 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)30 services
- Imaging of retina (92134)13 services
- New patient complete exam of visual system (92004)12 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 pressure65%
- Arthritis42%
- Ischemic heart disease31%
- Diabetes22%
- Anxiety18%
Practice locations
Addresses where Dac-Nha L. Truong is enrolled with Medicare (CMS data updated October 2, 2026).
- 1012 W Monroe, Rosin EyecareChicago, IL 60607 (312) 600‑9998
- 120 E Countryside PkwyYorkville, IL 60560
- 645 N Michigan AveChicago, IL 60611 (312) 787‑2020
- 718 N Bridge StYorkville, IL 60560 (630) 553‑6166
Group practices
Medicare enrollment lists Dac-Nha L. Truong as a member of these groups (CMS data updated October 2, 2026).
- Rosin Optical Co Inc51 clinicians in the group
- Brenart Eye Clinic, LLC8 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Rosin Optical Co Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508559329 |
| 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