Quick answers
- Where does Lisa M. Sienkiewicz see patients?
- Medicare's clinician data lists 1 practice location in Corona, CA. Call before your visit to confirm the address.
- What is Lisa M. Sienkiewicz's specialty?
- Medicare lists Marriage and Family Therapist as the primary specialty.
- Does Lisa M. Sienkiewicz accept Medicare assignment?
- Yes. Medicare's clinician data says Lisa M. Sienkiewicz 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 Lisa M. Sienkiewicz?
- (858) 279-1223, as listed in official Medicare / NPI Registry data.
- What is Lisa M. Sienkiewicz's NPI number?
- 1154850873. 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 Lisa M. Sienkiewicz is enrolled with Medicare (CMS data updated 2026-10-02).
- 4160 Temescal Canyon Rd, Suite 205Corona, CA 92883 (858) 279‑1223
Group practices
Medicare enrollment lists Lisa M. Sienkiewicz as a member of this group (CMS data updated 2026-10-02).
- Pacific Coast Psychiatric Associates Inc662 clinicians in the group
Specialties
Find other clinicians: Marriage and Family Therapist, California →
Other marriage and family therapists in Corona
Clinicians with the same Medicare primary specialty in Corona, CA — not a recommendation.
Clinician information
| Graduation year | 2014 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154850873 |
| 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