Quick answers
- Where does Allison M. Ipsen see patients?
- Medicare's clinician data lists 2 practice locations, including Napa, CA and Fairfield, CA. Call before your visit to confirm the address.
- What is Allison M. Ipsen's specialty?
- Medicare lists Certified Nurse Midwife (CNM) as the primary specialty.
- Does Allison M. Ipsen accept Medicare assignment?
- Medicare's clinician data says Allison M. Ipsen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Allison M. Ipsen's NPI number?
- 1023747334. 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 Allison M. Ipsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1141 Pear Tree LnNapa, CA 94558
- 470 Chadbourne RdFairfield, CA 94534
Specialties
Find other clinicians: Certified Nurse Midwife (CNM), California →
Other nurse midwifes in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1023747334 |
| 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