Quick answers
- Which hospitals does Ashleigh A. Olson work at?
- Medicare's official clinician data lists Ashleigh A. Olson at 1 hospital: SSM Health St Mary's Hospital - Madison. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ashleigh A. Olson see patients?
- Medicare's clinician data lists 9 practice locations, including Sun Prairie, WI, Madison, WI and Janesville, WI. Call before your visit to confirm the address.
- What is Ashleigh A. Olson's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Ashleigh A. Olson accept Medicare assignment?
- Yes. Medicare's clinician data says Ashleigh A. Olson 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.
- Does Ashleigh A. Olson offer telehealth?
- Medicare's clinician data says Ashleigh A. Olson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ashleigh A. Olson?
- (608) 825-3500, as listed in official Medicare / NPI Registry data.
- What is Ashleigh A. Olson's NPI number?
- 1699064238. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ashleigh A. Olson works
Medicare's Facility Affiliation Data lists Ashleigh A. Olson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · CCN 520083
Practice locations
Addresses where Ashleigh A. Olson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 10 Tower DrSun Prairie, WI 53590 (608) 825‑3500
- 1211 Fish Hatchery RdMadison, WI 53715 (608) 252‑8000
- 1821 S Stoughton RdMadison, WI 53716 (608) 260‑6000
- 2840 Okeeffe AveSun Prairie, WI 53590 (608) 229‑8484
- 2850 Okeeffe AveSun Prairie, WI 53590 (608) 282‑2000
Group practices
Medicare enrollment lists Ashleigh A. Olson as a member of this group (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699064238 |
| 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