Quick answers
- Where does Timothy Chen see patients?
- Medicare's clinician data lists 4 practice locations, including Oxnard, CA, Lancaster, CA and Santa Paula, CA. Call before your visit to confirm the address.
- What is Timothy Chen's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Timothy Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy Chen 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 Timothy Chen?
- (805) 436-3444, as listed in official Medicare / NPI Registry data.
- What is Timothy Chen's NPI number?
- 1720152002. 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 Timothy Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 2600 E Vineyard AveOxnard, CA 93036 (805) 436‑3444
- 43322 Gingham AveLancaster, CA 93535 (661) 579‑9317
- 500 E Main StSanta Paula, CA 93060 (805) 933‑0895
- 650 Meta StOxnard, CA 93030 (805) 487‑5351
Group practices
Medicare enrollment lists Timothy Chen as a member of these groups (CMS data updated 2026-10-02).
- Clinicas del Camino Real Inc99 clinicians in the group
- Bartz-Altadonna Community Health Center20 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Oxnard
Clinicians with the same Medicare primary specialty in Oxnard, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720152002 |
| 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