Quick answers
- Which hospitals does Alison S. Breen work at?
- Medicare's official clinician data lists Alison S. Breen at 1 hospital: University of California Davis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alison S. Breen see patients?
- Medicare's clinician data lists 3 practice locations, including Sacramento, CA and Elk Grove, CA. Call before your visit to confirm the address.
- What is Alison S. Breen's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Alison S. Breen accept Medicare assignment?
- Yes. Medicare's clinician data says Alison S. Breen 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 Alison S. Breen?
- (916) 683-3955, as listed in official Medicare / NPI Registry data.
- What is Alison S. Breen's NPI number?
- 1942434238. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alison S. Breen works
Medicare's Facility Affiliation Data lists Alison S. Breen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · CCN 050599
Practice locations
Addresses where Alison S. Breen is enrolled with Medicare (CMS data updated 2026-10-02).
- 2315 Stockton BlvdSacramento, CA 95817
- 2521 Stockton BlvdSacramento, CA 95817
- 8110 Laguna BlvdElk Grove, CA 95758 (916) 683‑3955
Group practices
Medicare enrollment lists Alison S. Breen as a member of these groups (CMS data updated 2026-10-02).
- Regents of the Univ of Ca1,584 clinicians in the group
- Regents of the University of California567 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942434238 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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