Quick answers
- Does Yen H. Tang accept Medicare assignment?
- Yes. Medicare's clinician data says Yen H. Tang 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 Yen H. Tang see?
- In 2024, CMS data shows 114 Original Medicare patients and 229 services for Yen H. Tang. This counts Original Medicare only and measures volume, not quality.
- What is Yen H. Tang's NPI number?
- 1629630413. 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 Yen H. Tang, 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 | 114 |
|---|---|
| Services billed to Medicare | 229 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)38 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)33 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)28 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)24 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)18 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 pressure74%
- High cholesterol70%
- Arthritis52%
- Ischemic heart disease20%
- Osteoporosis19%
- Diabetes18%
Practice locations
Addresses where Yen H. Tang is enrolled with Medicare (CMS data updated October 2, 2026).
- 13039 Route 50, Suite CFairfax, VA 22033 (571) 307‑2594
- 20070 Ashbrook Commons Plz, Unit 104Ashburn, VA 20147 (571) 479‑3116
Group practices
Medicare enrollment lists Yen H. Tang as a member of this group (CMS data updated October 2, 2026).
- Inova Ucc LLC155 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Fairfax
Clinicians with the same Medicare primary specialty in Fairfax, VA — not a recommendation.
Other clinicians in Inova Ucc LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | George Washington University School Of Medicine |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629630413 |
| 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