Quick answers
- Where does Alexandra M. Arenson see patients?
- Medicare's clinician data lists 1 practice location in Walnut Creek, CA. Call before your visit to confirm the address.
- What is Alexandra M. Arenson's specialty?
- Medicare lists Addiction Medicine as the primary specialty, and also Family Practice.
- Does Alexandra M. Arenson accept Medicare assignment?
- Yes. Medicare's clinician data says Alexandra M. Arenson 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 Alexandra M. Arenson?
- (925) 295-4145, as listed in official Medicare / NPI Registry data.
- What is Alexandra M. Arenson's NPI number?
- 1689170573. 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 Alexandra M. Arenson is enrolled with Medicare (CMS data updated 2026-10-02).
- 710 S BroadwayWalnut Creek, CA 94596 (925) 295‑4145
Group practices
Medicare enrollment lists Alexandra M. Arenson as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Addiction Medicineprimary
- Family Practicealso
Other addiction medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689170573 |
| 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