Quick answers
- Which hospitals does Olga Lester work at?
- Medicare's official clinician data lists Olga Lester at 4 hospitals: SSM Health St Clare Hospital - Baraboo, SSM Health St Mary's Hospital - Janesville, SSM Health St Mary's Hospital - Madison and Stoughton Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Olga Lester see patients?
- Medicare's clinician data lists 2 practice locations, including Madison, WI and Brookfield, WI. Call before your visit to confirm the address.
- What is Olga Lester's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Olga Lester accept Medicare assignment?
- Yes. Medicare's clinician data says Olga Lester 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 Olga Lester?
- (608) 252-8000, as listed in official Medicare / NPI Registry data.
- What is Olga Lester's NPI number?
- 1295289122. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Olga Lester works
Medicare's Facility Affiliation Data lists Olga Lester 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 Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · CCN 520057
- SSM Health St Mary's Hospital - JanesvilleJanesville, WI · Acute Care Hospital · CCN 520208
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · CCN 520083
- Stoughton HospitalStoughton, WI · Critical Access Hospital · CCN 521343
Practice locations
Addresses where Olga Lester is enrolled with Medicare (CMS data updated 2026-10-02).
- 1211 Fish Hatchery RdMadison, WI 53715 (608) 252‑8000
- 15010 W Greenfield Ave, Suite 102Brookfield, WI 53005 (877) 448‑3627
Group practices
Medicare enrollment lists Olga Lester as a member of these groups (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
- Metro Infectious Disease Consultants LLC389 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — 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) | 1295289122 |
| 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