Quick answers
- Which hospitals does Leanne Ondreicka work at?
- Medicare's official clinician data lists Leanne Ondreicka at 1 hospital: Winchester Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leanne Ondreicka see patients?
- Medicare's clinician data lists 2 practice locations, including Wilmington, MA and Woburn, MA. Call before your visit to confirm the address.
- What is Leanne Ondreicka's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Leanne Ondreicka accept Medicare assignment?
- Yes. Medicare's clinician data says Leanne Ondreicka 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 Leanne Ondreicka?
- (781) 787-3003, as listed in official Medicare / NPI Registry data.
- What is Leanne Ondreicka's NPI number?
- 1063092450. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leanne Ondreicka works
Medicare's Facility Affiliation Data lists Leanne Ondreicka at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Winchester HospitalWinchester, MA · Acute Care Hospital · CCN 220105
Practice locations
Addresses where Leanne Ondreicka is enrolled with Medicare (CMS data updated 2026-10-02).
- 66 B Concord StWilmington, MA 01887 (781) 787‑3003
- 800 W Cummings ParkWoburn, MA 01801 (781) 787‑3003
Group practices
Medicare enrollment lists Leanne Ondreicka as a member of this group (CMS data updated 2026-10-02).
- New England Womens Healthcare10 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Massachusetts Medical School |
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063092450 |
| 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