Quick answers
- Does Kim A. Nguyen accept Medicare assignment?
- Medicare's clinician data says Kim A. Nguyen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Kim A. Nguyen see?
- In 2024, CMS data shows 105 Original Medicare patients and 194 services for Kim A. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Kim A. Nguyen's NPI number?
- 1629417688. 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 Kim A. Nguyen, 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 | 105 |
|---|---|
| Services billed to Medicare | 194 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient complete exam of visual system (92014)48 services
- Established patient problem focused exam of visual system (92012)45 services
- Imaging of retina (92134)18 services
- Exam of visual field with extended testing (92083)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 pressure72%
- Arthritis49%
- Ischemic heart disease27%
- Diabetes24%
- Anxiety22%
Practice locations
Addresses where Kim A. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 2524 Lillian Miller Pkwy, Suite 100Denton, TX 76210
Group practices
Medicare enrollment lists Kim A. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Catherine Spoo Castleberry Od PA4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Denton
Clinicians with the same Medicare primary specialty in Denton, TX — not a recommendation.
Other clinicians in Catherine Spoo Castleberry Od PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | University Of Houston - College Of Optometry |
| Graduation year | 2013 (13 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1629417688 |
| 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