Quick answers
- Does Hoang Hai N. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Hoang Hai N. 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 Hoang Hai N. Nguyen see?
- In 2024, CMS data shows 629 Original Medicare patients and 9,343 services for Hoang Hai N. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Hoang Hai N. Nguyen's NPI number?
- 1487862082. 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 Hoang Hai N. 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 | 629 |
|---|---|
| Services billed to Medicare | 9,343 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (Q0138)5,610 services
- Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (Q5106)1,240 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)542 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)517 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)331 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%
- Chronic kidney disease75%
- Diabetes62%
- Heart failure52%
- Arthritis47%
Hospitals where Hoang Hai N. Nguyen works
Medicare's Facility Affiliation Data lists Hoang Hai N. 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.
- Mary Immaculate HospitalNewport News, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490041
- Riverside Regional Medical CenterNewport News, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490052
- Sentara Careplex HospitalHampton, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490093
- Sentara Norfolk General HospitalNorfolk, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490007
- Sentara Williamsburg Regional Medical CenterWilliamsburg, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490066
Practice locations
Addresses where Hoang Hai N. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 21 Manhattan Sq, Suite AHampton, VA 23666 (757) 251‑7469
Group practices
Medicare enrollment lists Hoang Hai N. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Peninsula Kidney Associates PC9 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Hampton
Clinicians with the same Medicare primary specialty in Hampton, VA — not a recommendation.
Other clinicians in Peninsula Kidney Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | University Of Pittsburgh School Of Medicine |
|---|---|
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487862082 |
| 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