Quick answers
- Does Quynhtrang L. Sebastian accept Medicare assignment?
- Medicare's clinician data says Quynhtrang L. Sebastian may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Quynhtrang L. Sebastian see?
- In 2024, CMS data shows 282 Original Medicare patients and 3,469 services for Quynhtrang L. Sebastian. This counts Original Medicare only and measures volume, not quality.
- What is Quynhtrang L. Sebastian's NPI number?
- 1467540229. 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 Quynhtrang L. Sebastian, 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 | 282 |
|---|---|
| Services billed to Medicare | 3,469 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)1,996 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)485 services
- Destruction of precancer skin growth, 1 growth (17000)456 services
- Destruction of skin growth, 1-14 growths (17110)220 services
- Biopsy of related skin growth, first growth (11102)83 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 pressure54%
- Arthritis48%
- Ischemic heart disease31%
- Osteoporosis25%
- Anxiety21%
Practice locations
Addresses where Quynhtrang L. Sebastian is enrolled with Medicare (CMS data updated October 2, 2026).
- 1260 15th St, Suite 709Santa Monica, CA 90404 (310) 917‑4433
Specialties
- Dermatologyprimary
Other dermatologists in Santa Monica
Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1467540229 |
| 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