Quick answers
- Does Joan M. Ybarra accept Medicare assignment?
- Yes. Medicare's clinician data says Joan M. Ybarra 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 Joan M. Ybarra's NPI number?
- 1851730915. 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 Joan M. Ybarra is enrolled with Medicare (CMS data updated October 2, 2026).
- 1812 Greenleaf DrWest Covina, CA 91792
- 556 N Diamond Bar Blvd, Suite 103Diamond Bar, CA 91765 (909) 573‑7660
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851730915 |
| 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