Quick answers
- Does Hien T. Tran accept Medicare assignment?
- Yes. Medicare's clinician data says Hien T. Tran 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 Hien T. Tran see?
- In 2024, CMS data shows 893 Original Medicare patients and 5,769 services for Hien T. Tran. This counts Original Medicare only and measures volume, not quality.
- What is Hien T. Tran's NPI number?
- 1487851408. 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 Hien T. Tran, 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 | 893 |
|---|---|
| Services billed to Medicare | 5,769 |
| Different services or procedures | 71 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)2,046 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)881 services
- Destruction of precancer skin growth, 1 growth (17000)624 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)399 services
- Destruction of skin growth, 1-14 growths (17110)241 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 cholesterol75%
- High blood pressure68%
- Arthritis43%
- Diabetes24%
- Ischemic heart disease24%
- Chronic kidney disease19%
Practice locations
Addresses where Hien T. Tran is enrolled with Medicare (CMS data updated October 2, 2026).
- 11100 Warner Ave, Suite 350Fountain Valley, CA 92708 (714) 232‑8833
- 4950 Barranca Pkwy, Suite 307Irvine, CA 92604 (949) 552‑1313
Group practices
Medicare enrollment lists Hien T. Tran as a member of this group (CMS data updated October 2, 2026).
- Seaside Dermatology Inc2 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Fountain Valley
Clinicians with the same Medicare primary specialty in Fountain Valley, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487851408 |
| 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