Quick answers
- Where does Grace S. Sun see patients?
- Medicare's clinician data lists 2 practice locations, including Ventura, CA and Oxnard, CA. Call before your visit to confirm the address.
- What is Grace S. Sun's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Grace S. Sun accept Medicare assignment?
- Yes. Medicare's clinician data says Grace S. Sun accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Grace S. Sun?
- (805) 658-5800, as listed in official Medicare / NPI Registry data.
- What is Grace S. Sun's NPI number?
- 1396056735. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Grace S. Sun is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 N Ashwood AveVentura, CA 93003 (805) 658‑5800
- 2811 N Ventura RdOxnard, CA 93036 (805) 983‑0343
Group practices
Medicare enrollment lists Grace S. Sun as a member of these groups (CMS data updated 2026-10-02).
- Community Memorial Health System185 clinicians in the group
- Dermatology Medical Group of Oxnard and Camarillo4 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Ventura
Clinicians with the same Medicare primary specialty in Ventura, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396056735 |
| 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 2026-10-02, retrieved 2026-10-29
- 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