Quick answers
- Where does Alyssa Tierney see patients?
- Medicare's clinician data lists 1 practice location in Alturas, CA. Call before your visit to confirm the address.
- What is Alyssa Tierney's specialty?
- Medicare lists Marriage and Family Therapist as the primary specialty.
- Does Alyssa Tierney accept Medicare assignment?
- Yes. Medicare's clinician data says Alyssa Tierney 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 Alyssa Tierney?
- (530) 233-6312, as listed in official Medicare / NPI Registry data.
- What is Alyssa Tierney's NPI number?
- 1770949349. 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 Alyssa Tierney is enrolled with Medicare (CMS data updated 2026-10-02).
- 441 N Main StAlturas, CA 96101 (530) 233‑6312
Group practices
Medicare enrollment lists Alyssa Tierney as a member of this group (CMS data updated 2026-10-02).
- County of Modoc7 clinicians in the group
Specialties
Find other clinicians: Marriage and Family Therapist, California →
Other marriage and family therapists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770949349 |
| 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