Quick answers
- Does Hyun Wook Hong accept Medicare assignment?
- Yes. Medicare's clinician data says Hyun Wook Hong 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 Hyun Wook Hong see?
- In 2024, CMS data shows 411 Original Medicare patients and 858 services for Hyun Wook Hong. This counts Original Medicare only and measures volume, not quality.
- What is Hyun Wook Hong's NPI number?
- 1346696721. 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 Hyun Wook Hong, 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 | 411 |
|---|---|
| Services billed to Medicare | 858 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)357 services
- Hospital discharge day management, more than 30 minutes (99239)221 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)123 services
- Advance care planning, first 30 minutes (99497)38 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)27 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%
- Ischemic heart disease56%
- Arthritis52%
- Chronic kidney disease48%
- Heart failure45%
Hospitals where Hyun Wook Hong works
Medicare's Facility Affiliation Data lists Hyun Wook Hong 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.
- University of Virginia Medical CenterCharlottesville, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490009
- UVA Health Culpeper Medical CenterCulpeper, VA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 490019
- UVA Health Haymarket Medical CenterHaymarket, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490144
- UVA Health Prince William Medical CenterManassas, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490045
Practice locations
Addresses where Hyun Wook Hong is enrolled with Medicare (CMS data updated October 2, 2026).
- 8700 Sudley RdManassas, VA 20110 (703) 396‑5297
Group practices
Medicare enrollment lists Hyun Wook Hong as a member of this group (CMS data updated October 2, 2026).
- UVA Community Health Medical Group LLC340 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Manassas
Clinicians with the same Medicare primary specialty in Manassas, VA — not a recommendation.
Other clinicians in UVA Community Health Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346696721 |
| 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