Quick answers
- Does Arthur Siebesian accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur Siebesian 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.
- What is Arthur Siebesian's NPI number?
- 1861985996. 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 Arthur Siebesian is enrolled with Medicare (CMS data updated October 2, 2026).
- 1225 W 190th St, Suite 280Gardena, CA 90248 (877) 515‑8113
- 7250 Redwood Blvd, Suite 300Novato, CA 94945 (877) 515‑8113
Group practices
Medicare enrollment lists Arthur Siebesian as a member of this group (CMS data updated October 2, 2026).
- Ehab Yacoub MD Inc181 clinicians in the group
Specialties
Find other clinicians: Marriage and Family Therapist, California →
Other marriage and family therapists in Gardena
Clinicians with the same Medicare primary specialty in Gardena, CA — not a recommendation.
Other clinicians in Ehab Yacoub MD Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861985996 |
| 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
- 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