Quick answers
- Does John J. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Nguyen 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 John J. Nguyen see?
- In 2024, CMS data shows 225 Original Medicare patients and 2,214 services for John J. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is John J. Nguyen's NPI number?
- 1578595864. 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 John J. 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 | 225 |
|---|---|
| Services billed to Medicare | 2,214 |
| Different services or procedures | 64 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)380 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)331 services
- Blood test, comprehensive group of blood chemicals (80053)188 services
- Insertion of needle into vein for collection of blood sample (36415)171 services
- Hemoglobin a1c level (83036)163 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 blood pressure75%
- High cholesterol74%
- Diabetes36%
- Arthritis36%
- Heart failure28%
- Chronic kidney disease27%
Hospitals where John J. Nguyen works
Medicare's Facility Affiliation Data lists John J. Nguyen 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.
- HCA Houston Healthcare WestHouston, TX · Acute Care Hospital · Medicare rating: 1 of 5 stars · CCN 450644
- Houston Methodist Sugar Land HospitalSugar Land, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450820
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450847
- Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450610
Practice locations
Addresses where John J. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 13440 University Blvd, Suite 210Sugar Land, TX 77479 (281) 277‑1330
- 9055 Katy Fwy, Suite 200Houston, TX 77024 (346) 646‑4954
Group practices
Medicare enrollment lists John J. Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Villagemd of Southeast Texas PA216 clinicians in the group
- Select Physical Therapy Texas Limited Partnership99 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Sugar Land
Clinicians with the same Medicare primary specialty in Sugar Land, TX — not a recommendation.
Other clinicians in Villagemd of Southeast Texas PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of North Texas Hsc, College Of Osteopathic Med |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578595864 |
| 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
- 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