Quick answers
- Does Crystal Poungsangchaun accept Medicare assignment?
- Yes. Medicare's clinician data says Crystal Poungsangchaun 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 Crystal Poungsangchaun see?
- In 2024, CMS data shows 75 Original Medicare patients and 2,995 services for Crystal Poungsangchaun. This counts Original Medicare only and measures volume, not quality.
- What is Crystal Poungsangchaun's NPI number?
- 1043859424. 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 Crystal Poungsangchaun, 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 | 75 |
|---|---|
| Services billed to Medicare | 2,995 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)16 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)15 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)14 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 pressure68%
- Arthritis45%
- Ischemic heart disease33%
- Diabetes28%
- Chronic kidney disease25%
Practice locations
Addresses where Crystal Poungsangchaun is enrolled with Medicare (CMS data updated October 2, 2026).
- 1150 N Loop 1604, Suite 150San Antonio, TX 78248 (281) 783‑8162
- 12319 N Mopac Expy, Suite 210Austin, TX 78758 (877) 448‑3627
- 19016 Stone Oak Pkwy, Suite 140San Antonio, TX 78258 (877) 448‑3627
- 7407 BroadwaySan Antonio, TX 78209 (281) 783‑8162
- 850 Central E Pkwy, Suite 275Plano, TX 75074 (972) 881‑4688
Group practices
Medicare enrollment lists Crystal Poungsangchaun as a member of these groups (CMS data updated October 2, 2026).
- Metro Infectious Disease Consultants LLC389 clinicians in the group
- Nluc PLLC226 clinicians in the group
- Legacy Physiatry Group LLC36 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Metro Infectious Disease Consultants LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043859424 |
| 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