Quick answers
- Does Derek T. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Derek T. 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 Derek T. Nguyen see?
- In 2024, CMS data shows 28 Original Medicare patients and 31 services for Derek T. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Derek T. Nguyen's NPI number?
- 1790954931. 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 Derek T. 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 | 28 |
|---|---|
| Services billed to Medicare | 31 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)25 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 cholesterol75%
- Arthritis68%
- Anxiety57%
- Heart failure57%
- Ischemic heart disease54%
Practice locations
Addresses where Derek T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 115 Spencer StWinsted, CT 06098 (860) 738‑5814
- 631 Quaker S LnWest Hartford, CT 06110 (860) 231‑6130
- 950 Yale AveWallingford, CT 06492
Group practices
Medicare enrollment lists Derek T. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Prohealth Physicians PC213 clinicians in the group
Specialties
- Family Practiceprimary
- Internal Medicinealso
Other family doctors in Winsted
Clinicians with the same Medicare primary specialty in Winsted, CT — not a recommendation.
Other clinicians in Prohealth Physicians PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 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) | 1790954931 |
| 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